Comparison

Zeno vs Eira

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

Head to head
About

Zeno

Features
Read full description

Zeno gives you one intelligent assistant, Zeno, powered by 15+ AI models including Claude, Gemini, Grok, and Llama. Ask anything — Zeno automatically picks the best model for each question. Features: - Smart model routing — coding questions go to Claude, creative tasks to Grok, image generation to Flux - Personalised daily briefings based on your interests - Conversation memory that learns your preferences - Knowledge modules for specialist domains - Works on iPhone and iPad

About

Eira

Features
Read full description

Eira is a private AI assistant that lives entirely on your device. Unlike cloud chatbots, Eira runs on-device language models. Your questions are answered right on your device. Nothing you type is ever sent to a server, and Eira works even with no internet connection at all. YOUR CONVERSATIONS BELONG TO YOU • No account, no sign-up, no API keys • No cloud processing: all inference happens on device • No analytics, no tracking, no ads • Works fully offline A CHAT EXPERIENCE THAT FEELS NATIVE • Opens straight into your last conversation • Streaming responses you can stop mid-answer • Unlimited conversations with search across every message • Pin your favorites and rename chats to stay organized • Copy any answer or export whole conversations as Markdown MAKE IT YOURS • Light and dark themes in a warm, focused palette • Three accent colors: Royal Gold, Razzmatazz, and Cobalt Blue PRIVATE BY DESIGN Eira stores your conversations only on your device. There is no Eira server, and the app makes no network connections. When we say your conversations belong to you, it's not a slogan — it's the architecture. REQUIREMENTS Eira needs an iPhone that supports Apple Intelligence with Apple Intelligence turned on in Settings, running iOS 26 or later. Your conversations belong to you.

Screenshots

Zeno4 screens
Eira3 screens

Verdict

The call

The clearest difference is in-app purchases: Eira at none against Zeno's 3. Zeno's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and ads there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Zeno sells 3 one-off in-app purchases. Eira asks for nothing beyond the download.

Scorecard3 real differences Ā· 3 level
Zeno versus Eira: the parameters behind the verdict, then further details
ParameterZenoEira
PriceFreeFree
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better26.0
Further details — not scored
Size51 MB1 MB
Age rating4+12+
DeveloperMichael SmythDulio Denis

In-app purchases

3 purchases

Zeno

One-time3
  • 50 Credits$1.00
  • 200 Credits$2.99
  • 500 Credits$4.99
None

Eira

No in-app purchases

Questions

Is Zeno free?
Zeno is free to download, with in-app purchases available.
Is Eira free?
Eira is free to download, with no in-app purchases.
Do Zeno or Eira have ads?
Neither Zeno nor Eira shows ads.

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