Comparison

picocalc vs Duora

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

Head to head
About

picocalc

This app displays a single number on your home screen badge, which can be set, added to, or subtracted from. It's a minimalist tool for quick numerical reminders. Negative numbers and zero are not displayed on the badge.

Highlights
  • Set a number
  • Add to number
  • Subtract from number
  • Home screen badge display
  • Hides zero and negative numbers
Features
Read full description

picocalc is a tiny number memo which can be set, added and subtracted. The number is show as an application badge in the home screen. Zero and a negative number won't be shown in the badge.

About

Duora

Features
Read full description

Powered by Apple's latest Foundation Models framework and on-device MLX models, Duora brings fast and reliable intelligence directly to your device while keeping your data fully protected. After setup, local models work without an internet connection and your information never leaves your device. Key Features: 1. On-Device Intelligence Built on native Apple Foundation Models and downloadable MLX models, optimized for iPhone to deliver fast, efficient responses. 2. Private and Offline by Design All processing happens locally. No servers, no uploads, no tracking. Once your models are ready, Duora works even without an internet connection. 3. Duora Voice Assistant Talk to Duora naturally with selectable on-device speech recognition and voice models, then hear the answer hands-free. 4. Web Search Bring current information and cited sources into a conversation whenever you choose. 5. Document Reading Import documents and ask questions grounded in their contents. 6. Duora Connect Use your own nearby Mac or iPad to run larger local models over your local network. 7. Duora Benchmark Measure and compare on-device model speed with consistent performance tests. 8. Layered Reasoning Duora analyzes your question from multiple perspectives, breaks it into clear steps, and produces thoughtful, accurate answers. 9. Long and Continuous Conversations Smart context management keeps your conversation flowing seamlessly, no matter how long you chat. 10. Shaped Around You Tune Duora's personality, expertise, and tone, and define custom rules for how it thinks and responds. 11. Refined Native Design A smooth, focused interface with fluid animations, a minimal layout, and full support for system appearance.

Screenshots

picocalc2 screens
Duora4 screens

Verdict

The call

The clearest difference is in-app purchases: Duora at none against picocalc's 1. Duora also leads on ads (none vs shown) and update cadence (every 7 months vs every 31 months). picocalc's advantage is device support (4 vs 2) and iOS requirement (17.6 vs 26.1). On price 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. picocalc sells 1 one-off in-app purchase. Duora asks for nothing beyond the download.

UpkeepUpdate frequency

picocalc ships an update every 31 months, Duora every 7 months. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.

Scorecard5 real differences · 5 level
picocalc versus Duora: the parameters behind the verdict, then further details
ParameterpicocalcDuora
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews65.6% of reviews—
Number of ratings3 — better—
Update frequencyEvery 31 monthsEvery 7 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Apple Watch, Vision Pro — betteriPhone, iPad
Requires iOS17.6 — better26.1
Further details — not scored
Size6 MB58 MB
Age rating4+12+
DeveloperMasayuki AkamatsuYAVUZ KAAN AKYUZ

In-app purchases

1 purchases

picocalc

One-time1
  • Remove Ads$0.99
None

Duora

No in-app purchases

Questions

Is picocalc free?
picocalc is free to download, with in-app purchases available.
Is Duora free?
Duora is free to download, with no in-app purchases.
Do picocalc or Duora have ads?
picocalc shows ads; Duora does not.
Which is updated more often, picocalc or Duora?
picocalc ships an update every 31 months, and Duora every 7 months. Most recently, picocalc was updated on September 22, 2026 and Duora on September 12, 2026.

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