Comparison

Eris. vs ReadKey

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Eris.

Experience private AI conversations entirely on your device. This app offers offline access to multiple AI models, ensuring your data never leaves your iPhone or iPad. Enjoy fast, secure AI assistance without internet connectivity or subscriptions.

Highlights
  • 100% Private conversations
  • No internet required
  • Multiple AI models supported
  • Optimized for Apple Silicon
  • One-time download, use forever
  • Dark Mode support
  • Haptic feedback
Features
Read full description

Eris brings the power of AI conversation to your iPhone and iPad while keeping your privacy intact. Unlike cloud-based AI assistants, Eris runs entirely on your device using Apple's cutting-edge MLX framework. KEY FEATURES: • 100% Private - All conversations stay on your device • No Internet Required - Chat with AI completely offline • Multiple AI Models - Choose from Llama, Qwen, DeepSeek, and more • Lightning Fast - Optimized for Apple Silicon performance • No Subscriptions - One-time download, use forever • Dark Mode Support - Easy on your eyes • Haptic Feedback - Tactile responses for better interaction SUPPORTED MODELS: • Llama 3.2 (1B, 3B) - Meta's efficient language models • Qwen 2.5 Series - Multilingual capabilities • DeepSeek R1 - Advanced reasoning • Gemma 2, Phi 3.5, Mistral - Various specialized models • Code Models - For programming assistance PRIVACY FIRST: Your conversations never leave your device. No cloud servers, no data collection, no tracking. What you say to Eris stays with Eris. REQUIREMENTS: • iPhone XS/XR or newer (A12 chip required) • iOS 17.6 or later • 2-8GB storage per model Perfect for users who want AI assistance without compromising privacy. Whether you're brainstorming ideas, getting help with code, or just having a conversation, Eris is your private AI companion. Note: First launch includes a one-time model download. Models are stored locally for offline use.

About

ReadKey

Features
Read full description

ReadKey turns reading into a simple rule. Instead of relying on willpower, ReadKey helps you reduce distractions by temporarily restricting access to selected apps on your device. You choose what to lock. You decide when to focus. Add any book by searching its title or ISBN. Log the pages you read. Convert your reading progress into scrolling minutes. Use those minutes to unlock access to distracting apps. ReadKey transforms reading into a clear exchange: pages read → scrolling earned. Build a streak, stay consistent, and make reading part of your daily routine. ReadKey is built for people who want fewer distractions and a stronger reading habit. Features: • Block selected apps using Screen Time integration • Add books by title or ISBN • Log pages you read • Convert reading pages into scrolling minutes • Unlock apps through reading progress • Track your reading streak • Clean, minimal design • Built with privacy in mind No ads. No tracking. Just focus.

Screenshots

Eris.4 screens
ReadKey4 screens

Verdict

The call

The clearest difference is update cadence: Eris. at every 2 weeks against ReadKey's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Eris. ships an update every 2 weeks, ReadKey every 6 weeks. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
Eris. versus ReadKey: the parameters behind the verdict, then further details
ParameterEris.ReadKey
PriceFreeFree
Rating3.4 (10 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0.0 — better
Further details — not scored
Size34 MB46 MB
Age rating4+4+
DeveloperIgnacio PalacioIgor Filiuk

In-app purchases

None

Eris.

No in-app purchases

None

ReadKey

No in-app purchases

Questions

Is Eris. free?
Eris. is free to download, with no in-app purchases.
Is ReadKey free?
ReadKey is free to download, with no in-app purchases.
Do Eris. or ReadKey have ads?
Neither Eris. nor ReadKey shows ads.
Which is updated more often, Eris. or ReadKey?
Eris. ships an update every 2 weeks, and ReadKey every 6 weeks. Most recently, Eris. was updated on October 30, 2026 and ReadKey on October 25, 2026.

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