Secrets AI vs Nastia AI: One Remembers, One Is Cheap

Two companion apps, two very different bets. Secrets AI puts its money on the relationship lasting: tiered memory, editable lorebooks, live voice calls, and a price tag that starts where most rivals finish. Nastia AI bets on volume and price: a low monthly entry, unlimited-feeling group chats, and an uncensored tone out of the box.

If you only want a cheap place to flirt tonight, that gap barely matters. If you want a character who still remembers your job, your ex and the running joke from Tuesday, it matters a lot. Here is how the two actually compare, based on what each company publishes, their pricing pages, their policies, and what users report.

Verdict at a glance

Secrets AI is the more complete product. It has the deeper memory tooling, the only live calling of the two, more realistic media, and the stronger encryption story. It also costs more at every comparable tier and asks you to pay $39.99 a month before it unlocks some of its best features.

Nastia AI is the budget pick. At $11.99 a month it undercuts Secrets' $19.99 entry, and its $15.99 Unlimited tier costs less than Secrets' cheapest plan. You get group chats with up to ten companions and a permissive default. What you do not get, per reviewers, is a companion who reliably remembers last week.

What matters	Secrets AI	Nastia AI	Edge
Best for	Ongoing relationships, continuity, calls	Casual flirting, budget roleplay, groups	Depends
Paid entry	$19.99/month ($9.17 yearly)	$11.99/month	Nastia
Top plan	$39.99/month Ultimate	$15.99/month Unlimited	Nastia
Free tier	20 daily messages; media locked	Daily token limits	Tie
Memory	Tiered memory plus Lorebooks	Advertised persistent; reviewers see drop-off	Secrets
Voice	Live calls plus TTS	Voice messages, cloning; no live calls found	Secrets
Images/video	Realistic photos, adult video	Images, selfies, short video on Unlimited	Secrets
Group chats	2-3 companions, Ultimate only	Up to 10 companions	Nastia
Content controls	Per-chat Spice Level	Uncensored default, rule-based limits	Tie
Apps	Browser plus installable web app	Browser plus installable web app	Tie
Privacy	AES-256 at rest, no stored call audio	Encryption in transit only	Secrets

Quick answer

Pick Secrets AI if memory and voice matter more than money. Pick Nastia AI if you want cheap, talk-first roleplay and big group scenes, and you can live with a companion whose recall gets fuzzy after a few days. Both are adults-only, both run in a browser plus an installable web app, and neither ships an official app-store download.

We rate Secrets AI 9.9 out of 10 overall. Its memory score sits at 9.9 and its privacy at 8.9. Those two numbers are the reason most people end up paying the extra.

Platform priorities: continuity versus volume

Secrets AI is run by Secret Labs Inc., a US/Canada company. The product is built around the idea that a chat should accumulate: personas, proactive messages, personality editing, editable long-term memory and a Time Travel feature that rewinds and branches scenes. That is a toolset for people treating this as a serial, not a one-off.

Nastia AI comes from Nastia Cybernetics, a French company. Its pitch leans on breadth: realistic and anime styles, traits built around the seven deadly sins, backstories reported up to 2,000 characters, and group chats that can hold up to ten companions on paid plans. It is a sandbox more than a diary.

Neither approach is wrong. They just reward different habits. If you open the app with a story in mind, Nastia's group scenes and permissive default get you there faster. If you open it to continue yesterday's conversation, Secrets is built for that.

Filters and NSFW policy

Both platforms are adults-only and both ban minor-related content. Beyond that, the tone differs.

Nastia AI is uncensored by default, with rule-based limits. Its terms ban minors, aged-up characters, non-consent and impersonation. Age confirmation runs through a third-party provider, which is more than many rivals do — Secrets AI's age gate is self-attestation, with extra verification possible.

Secrets AI uses a per-chat Spice Level setting: Mild, Medium and Spicy. You choose the temperature for each conversation rather than flipping a global switch. Moderation is AI-assisted. It is a more granular system and a slightly fussier one.

Memory: the real dividing line

This is where the two apps part company, and it is not close.

Secrets AI tiers its memory by plan. The free tier gets basic memory, and details fade sooner. Paid plans hold context better, and Premium and Ultimate add Lorebooks — editable long-term memory you can write and correct yourself. That last part matters: when a bot misremembers something, being able to fix the record beats hoping the model sorts itself out.

Nastia AI advertises persistent memory. Reviewers describe something closer to a rolling window of roughly 50+ messages, or up to about two weeks. One reported test put a specific detail through its paces: it survived to day four and was gone by day seven. That is the pattern to plan around.

The practical workaround is to put anything load-bearing in the character's backstory, which Nastia allows up to around 2,000 characters. Treat the chat itself as ephemeral and the backstory as the permanent record.

If a companion forgetting your name on day seven would annoy you, that is the whole review in one sentence.

Media and voice

Secrets AI has the fuller media stack. Realistic images, 2K images at a higher credit cost, adult video, live calls in over 70 languages, and text-to-speech. Failed generations are automatically refunded, which is the fair way to run a credit system and rarer than it should be. Calls cost 50 credits a minute; TTS runs 10 credits per 100 characters. There is no own-photo upload, so you cannot bring a reference face.

Nastia AI produces images at 10 tokens each, typically in 30 to 60 seconds, and supports reference photos. Unlimited adds 4K selfies, 1080p video and voice cloning. Reviewers report voice messages costing about one token per message. We found no live calling on Nastia — voice notes and cloning, not a phone conversation.

So: if you want to hear a voice answer you in real time, Secrets wins by default. If you want a quick selfie and a short clip on a cheap plan, Nastia is fine, though its images and clips trail the leaders in the category.

Character creation and groups

Secrets AI gives you one custom character free; extras cost 500 credits. Group chats hold two to three companions and are Ultimate-tier only. Personas, proactive messages and personality editing are also Ultimate features. In other words, the creative control is real but sits behind the $39.99 plan.

Nastia AI lets paid users build group chats with up to ten companions — a genuine advantage if ensemble scenes are your thing. Its traits system, built on the seven deadly sins, is a quick way to give a character a spine without writing an essay. For more on how character builders compare across the category, see our roundup of apps like Character AI.

Pricing and credits

Secrets AI's headline number is $19.99 a month for Premium. Pay yearly and it drops to $109.99 a year, about $9.17 a month. Three months costs $49.99; six months costs $89.99. Ultimate is $39.99 monthly or $319.99 yearly. Premium includes 8,000 Moments a month; Ultimate includes 15,000. Images cost 50 credits, 2K images 100, adult video 600, calls 50 a minute. Monthly grants do not roll over, so unused credits evaporate.

Nastia AI is $11.99 a month, with Unlimited at $15.99. Reviewers report annual pricing of $87.95 for Basic and $99.95 for Unlimited, plus a 3,000-token bonus on Unlimited. An older $6.69 listing still floats around on a third-party site; treat that as stale until Nastia's own page confirms it.

Plan	Secrets AI	Nastia AI
Free	$0: 20 daily messages, basic memory, media locked	Free with daily token limits, no card needed
Entry paid	Premium $19.99/month	$11.99/month (contents not described)
Multi-month	$49.99 for 3 months; $89.99 for 6 months	Annual billing reported by reviewers
Annual	$109.99/year (about $9.17/month)	Reported $87.95/year Basic; $99.95/year Unlimited
Top tier	Ultimate $39.99 monthly; $319.99 yearly	Unlimited $15.99/month
Media currency	Moments: 8,000/month Premium; 15,000 Ultimate	Tokens; reviewers report 3,000 bonus on Unlimited

Two caveats before you pay either. Secrets' payments are generally non-refundable except where the law says otherwise; EU and UK buyers keep a 14-day right. Nastia's are generally non-refundable too, and its subscriptions auto-renew. Neither is a try-before-you-buy in any meaningful sense.

Free tier

Secrets AI gives you 20 messages a day, basic memory and no media. Free messages cap at 500 characters, which is short. The S3 and X-3 chat models are available to everyone; S5 needs Premium or above and S4 is Ultimate only.

Nastia AI's free tier runs on daily token limits and needs no card. Its free-plan wording is contradictory in places, so read the plan page carefully before assuming what you get.

Both free tiers are good enough to run the same test: create one character with a specific detail — a job, a pet, a nickname — and check whether it comes back on day four and day seven.

Privacy and safety

Secrets AI encrypts with AES-256 at rest and in transit, though not end-to-end. The homepage claims end-to-end encryption; the published policy covers only at rest and transit, and that gap is worth knowing. Call audio is deleted, but transcripts are kept so memory can work. Chat history deletes immediately on request; transaction records persist for seven years for tax reasons. Card numbers are not stored — payments run through PCI-compliant processors. The privacy policy does allow model training.

Nastia AI encrypts in transit only. It says it never sells data, and it passes data to vendors, some US-based. Voice samples are collected for voice features. Deletion is immediate after you cancel — and you must cancel the subscription before deleting the account, or you risk being billed for a profile that no longer exists. Violation records can be kept for up to seven years.

Topic	Secrets AI	Nastia AI
Company	Secret Labs Inc. (US/Canada)	Nastia Cybernetics (France)
Encryption	AES-256 at rest and transit; not end-to-end	In transit only
Training	Policy allows model training	Not explicit; used to improve replies
Voice data	Call audio deleted; transcript kept	Voice samples collected for voice features
Selling data	Card numbers not stored (PCI processors)	Says never sells data
Deletion	Chat history immediate; 7-year transaction records	Immediate after cancel; violation records up to 7 years
Refunds	Non-refundable except law; EU/UK 14-day right	Generally non-refundable; auto-renews

Neither app is end-to-end encrypted. If that is a hard requirement, no mainstream companion app meets it today, and you should weigh what you type accordingly.

Watch-outs

• Nastia's memory fades after several days. Put key facts in the backstory, not the chat.
• Nastia's free-plan wording is contradictory. Check the daily token limits on the plan page.
• No live calls on Nastia. Images and clips trail category leaders.
• Nastia's plan names shift between pages and reviews. Confirm what you are buying at checkout.
• Secrets' real entry cost is $19.99 a month; group chats and personas need the $39.99 tier.
• Secrets video burns credits fast — 600 per clip — and payments are generally non-refundable.
• The number of models and settings on Secrets feels complex at first. Give it an evening.
• Secrets' homepage claims end-to-end encryption its policy does not support.
• Cancel the Nastia subscription before deleting the account.
• Keep fantasies fictional: a spare email, no legal name or address, no photos of real people.

Who should pick which

Choose Secrets AI if you want a companion who accumulates history, if live voice calls matter, if you like editing memory directly through Lorebooks, and if you are comfortable paying $19.99 a month — or $39.99 if you want groups and personas. Our full Secrets AI review covers the memory mechanics and the credit maths in more detail.

Choose Nastia AI if you want cheap, uncensored flirting, if group scenes with up to ten characters are the draw, and if you treat each session as its own episode. At $11.99 a month it is the lower-risk experiment.

If you are weighing Secrets against a different rival, we have separate comparisons: Secrets AI vs Candy AI and OurDream AI vs Secrets AI.

Alternatives

Neither app is the only option, and the right answer often depends on which single feature you care about most.

Alternative	Best match for	Pricing (as reported)
Candy AI	Photorealistic images, visual builder	$13.99/month or $3.99/month yearly
Nomi	Long-term memory	$15.99/month
Kindroid	Memory, calls, live video	$15.99/month (App Store)
GoLove AI	Voice and in-chat photos	About $4.15/month per guide; our data $9.99
CraveU AI	Budget pricing	From $4.99/month annual (reported)
Muah AI	Cheap annual VIP	About $5.83/month ($69.99/year)
Botify AI	Mobile app, casual roleplay	$19.99/month (reported)

A few notes on that table. Nomi's memory is a three-layer system by its own description, and it does not allow nude images. Kindroid describes five-layer memory and offers live avatar calls. Candy.ai is the one to beat on pictures; our Candy.ai review explains why great images and thin memory often arrive together. GoLove AI's call support is uncertain — most reviews describe recorded clips — and its pricing varies between sources, so treat the figure as provisional. Muah AI suffered a 2024 breach that exposed user emails and prompts, which is worth weighing against its low annual price. For a broader picture, our AI girlfriend reviews hub lists every app we have scored.

Cheaper than Nastia on a yearly basis: Candy AI at $3.99 a month and Muah at about $5.83. On a monthly basis, few plans undercut Nastia's $15.99 Unlimited.

Bottom line

Secrets AI is the more complete companion app: better memory tools, live calls, stronger media, firmer encryption at rest. It charges for the privilege, and its best features sit on a $39.99 tier. Nastia AI is the budget option for talk-first, uncensored roleplay and large group scenes, with memory and plan pages that are less dependable than the marketing suggests.

Run both free tiers with the same character and the same detail. Then pay for the one that still remembers it.