Comparison

Keyboard IA vs Converter One

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

Head to head
About

Keyboard IA

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Turn your keyboard into a smart assistant. Keyboard IA is a custom keyboard for iOS designed to help you communicate, translate, and rewrite messages faster, easier, and in multiple languages. Key features: β€’ Instant translation (text and voice) in multiple languages β€’ Offline multilingual text-to-speech (FR, EN, TH, ZH…) β€’ Smart message rewriting using AI β€’ Voice interaction with built-in offline Whisper β€’ Secure local storage (SQLite) – no data sent externally β€’ Compatible with GPT-3.5, GPT-4, and more β€’ No account required – full privacy control β€’ Works with your own OpenAI API key Privacy: Keyboard IA collects no personal data. Everything stays on your device, under your control.

About

Converter One

Features
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Converter One is a beautifully crafted universal unit converter that runs seamlessly across iPhone, iPad, Mac, and Apple Vision Pro. Designed for simplicity and precision, it offers an elegant, distraction-free interface that feels perfectly at home in every Apple environment. FEATURES β€’ Instantly convert across all major unit types β€’ Universal design for iOS, iPadOS, macOS, and visionOS β€’ Smooth 3D experience and gesture support on Vision Pro β€’ Favorites and smart search for quick access β€’ Adaptive layout that feels natural on any device β€’ Haptic feedback and dynamic β€œliquid glass” visuals β€’ Fully offline, ad-free, and privacy-friendly SUPPORTED CATEGORIES Length, Area, Volume, Weight, Temperature, Speed, Time, Pressure, Energy, Power, Force, Angle, Data, Data Rate, Frequency, Fuel, Density, Torque, and more. PRIVACY Converter One collects no personal data and works completely offline.

Screenshots

Keyboard IA4 screens
Converter One4 screens

Verdict

The call

The clearest difference is price: Converter One at $0.99 against Keyboard IA's $8.99. Keyboard IA's advantage is update cadence (every 3 months vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

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

Keyboard IA costs $8.99 and Converter One $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Keyboard IA ships an update every 3 months, Converter One every 6 months. Both last shipped on October 30, 2026.

Scorecard2 real differences Β· 4 level
Keyboard IA versus Converter One: the parameters behind the verdict, then further details
ParameterKeyboard IAConverter One
Price$8.99$0.99 β€” better
Update frequencyEvery 3 months β€” betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 β€” better17.6
Further details β€” not scored
Size842 MB10 MB
Age rating4+4+
DeveloperBryan LeddaAshkan Zanjani

In-app purchases

None

Keyboard IA

No in-app purchases

None

Converter One

No in-app purchases

Questions

Is Keyboard IA free?
Keyboard IA costs $8.99, with no in-app purchases.
Is Converter One free?
Converter One costs $0.99, with no in-app purchases.
Do Keyboard IA or Converter One have ads?
Neither Keyboard IA nor Converter One shows ads.
Which is updated more often, Keyboard IA or Converter One?
Keyboard IA ships an update every 3 months, and Converter One every 6 months. Most recently, Keyboard IA was updated on October 30, 2026 and Converter One on October 30, 2026.

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