Conversor vs Plain AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Conversor
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Conversor is a smart tool with a wide range of unit conversion features that are very easy to use. This app has a huge range of standard units for both metric and non-metric conversions. It is also voice-activated. Currently, it can convert: - Currency (exchange rates are updated in live mode) - Area - Digital Storage - Energy - Fuel Economy - Length - Mass - Angle - Pressure - Speed - Temperature - Time - Volume
Plain AI
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Plain AI is a simple, straightforward AI chat app that runs entirely on your device. All conversations are private and processed locally without any internet connection. Key Features • Multiple AI Models: Choose from Llama 3.2 (1B and 3B), Qwen 3.1 1.7B, Gemma 2 2B, or Apple Foundation Models • Complete Privacy: All processing happens on your device - no data is sent to servers • Customizable Parameters: Adjust temperature and top-p settings to control response creativity and diversity • Offline First: Works without internet after initial model download • Clean Interface: Simple, distraction-free chat experience Supported Models • Apple Foundation Models (iOS 26+, no download required) • Llama 3.2 1B (fast and efficient for basic tasks) • Llama 3.2 3B (balanced speed and quality) • Qwen 3.1 1.7B (multilingual support) • Gemma 2 2B (safe and reliable responses) Privacy Your conversations never leave your device. No accounts, no tracking, no data collection. Everything stays private and local. Free Forever Plain AI is completely free with no ads, subscriptions, or in-app purchases. Download a model and start chatting. Requirements • Storage space for downloaded models (approximately 700MB to 2GB per model) • Apple Foundation Models require iOS 26 or later and compatible devices AI responses may occasionally be inaccurate. Please verify important information.
Screenshots
Verdict
The clearest difference is price: Plain AI at Free against Conversor's $0.99. Conversor's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On ads and in-app purchases 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
Plain AI is free to download; Conversor costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Conversor | Plain AI |
|---|---|---|
| Price | $0.99 | Free — better |
| Update frequency | Every 14 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Hassan Taleb | Jarle Hansen |
In-app purchases
Conversor
No in-app purchases
Plain AI
No in-app purchases









