# BitConvert vs Nostra Tech

The clearest difference is in-app purchases: Nostra Tech at none against BitConvert's 2. Nostra Tech also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BitConvert sells 2 in-app purchases, starting at $2.99 per month. Nostra Tech asks for nothing beyond the download.

BitConvert ships an update every 2 months, Nostra Tech every 3 months. The most recent releases landed on October 29, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | BitConvert | Nostra Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.4K ratings)](https://appshunter.io/ios/app/bitconvert-crypto-calculator/id1374297012/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 81.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 24 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Senol Cagir](https://appshunter.io/developer/1240140029) | [David Banford](https://appshunter.io/developer/1101619243) |

## What reviewers say

### BitConvert

[App page](https://appshunter.io/ios/app/bitconvert-crypto-calculator/id1374297012)

Easily convert between thousands of virtual, crypto, and real-world currencies with this intuitive calculator. Get instant conversion rates and track currency value changes with dynamic graphs. Ideal for traders and curious users alike.

**Highlights:** Convert over 1000 altcoins, Support for 33 real-world currencies, Home screen widget for quick conversions, View dynamic increase/decrease graphs, Simultaneous multi-currency conversion, Tools for investment decisions

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription + No Ads | $2.99 | per month |
| Pro Subscription + No Ads | $29.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient conversions
- 💡 Helpful for crypto enthusiasts
- 🤑 Great for calculating Bitcoin holdings

**What reviewers complain about**

- 🐛 Occasional crashes and freezes
- ⚠️ Not always accurate with current rates
- 💰 Subscription model is expensive

**Reported bugs**

- Blank screen on opening the app
- Input fields not working properly
- Compatibility issues with older devices

**Requested features**

- Add a built-in calculator
- Improve price tracking accuracy
- Offer a one-time purchase option


### Nostra Tech

[App page](https://appshunter.io/ios/app/nostra-tech/id6749372640)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BitConvert free?

BitConvert is free to download, with in-app purchases available.

### Is Nostra Tech free?

Nostra Tech is free to download, with no in-app purchases.

### Do BitConvert or Nostra Tech have ads?

Neither BitConvert nor Nostra Tech shows ads.

### Which is updated more often, BitConvert or Nostra Tech?

BitConvert ships an update every 2 months, and Nostra Tech every 3 months. Most recently, BitConvert was updated on October 29, 2026 and Nostra Tech on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*