Comparison

Modulo AI vs Eris.

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

Head to head
About

Modulo AI

This app analyzes your calendar to find open time slots and suggests personalized activities based on your interests. It helps you fill your free time with rewarding experiences like workouts, creative breaks, or learning new skills.

Highlights
  • AI-powered activity suggestions
  • Calendar analysis for open slots
  • Personalized activity recommendations
  • Focus on meaningful free time use
  • Supports various interests (fitness, learning, creative)
Features
Read full description

Modulo helps you make the most of your free time. By analyzing open slots in your calendar, Modulo uses AI to suggest meaningful and personalized activities based on your interests. Whether it’s a quick workout, a creative break, or time to learn something new, Modulo turns your remainder into rewarding moments.

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.

Screenshots

Modulo AI3 screens
Eris.4 screens

Verdict

The call

The clearest difference is rating: Modulo AI at 5.0 against Eris.'s 4.3. Modulo AI also leads on iOS requirement (15.1 vs 17.6). Eris.'s advantage is ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Modulo AI holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Eris. has 6 ratings behind it against 1, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Modulo AI versus Eris.: the parameters behind the verdict, then further details
ParameterModulo AIEris.
PriceFreeFree
Rating5.0 (1 ratings) — better4.3 (6 ratings)
Positive reviews—80.0% of reviews
Number of ratings16 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size22 MB34 MB
Age rating4+4+
DeveloperSujith VarugheseIgnacio Palacio

Customer experience

Modulo AI

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Eris.

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

Modulo AI

No in-app purchases

None

Eris.

No in-app purchases

Questions

Is Modulo AI free?
Modulo AI is free to download, with no in-app purchases.
Is Eris. free?
Eris. is free to download, with no in-app purchases.
Which has better reviews, Modulo AI or Eris.?
Modulo AI is rated higher. Modulo AI averages 5.0 out of 5 from 1 ratings, while Eris. averages 4.3 from 6 ratings.
Do Modulo AI or Eris. have ads?
Neither Modulo AI nor Eris. shows ads.

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