# TanZen HD vs BTFields Premium

The clearest difference is update cadence: TanZen HD at every 2 months against BTFields Premium's every 4 months. TanZen HD also leads on iOS requirement (10.0 vs 15.0). BTFields Premium's advantage is price ($0.99 vs $2.99) and device support (3 vs 1). On review sentiment, ads and in-app purchases there is nothing between them.

TanZen HD costs $2.99 and BTFields Premium $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TanZen HD ships an update every 2 months, BTFields Premium every 4 months. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TanZen HD | BTFields Premium |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[4.7 (245 ratings)](https://appshunter.io/ios/app/tanzen-hd/id363300963/reviews)** | — |
| Number of ratings | **245** | — |
| Positive reviews | 95.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Paid |
| Size | 193 MB | 76 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Little White Bear Studios, LLC](https://appshunter.io/developer/286331903) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### TanZen HD

[App page](https://appshunter.io/ios/app/tanzen-hd/id363300963)

Engage in a classic tangram puzzle experience with over 500 challenges. Fit seven geometric pieces into a shaded area without overlap to solve each puzzle. Perfect for quick breaks or extended play sessions.

**Highlights:** Over 500 tangram puzzles, Classic tangram gameplay, Fit seven geometric pieces, No overlapping pieces, Puzzle completion recognition, Play for short or long durations

**In-app purchases:** none

**What reviewers like**

- 🌟 Relaxing and enjoyable puzzles
- 👍 Intuitive and easy-to-use interface
- 🧠 Mentally stimulating and challenging
- 🎨 Beautiful and soothing visuals
- 🎶 Calming background music

**What reviewers complain about**

- 🐛 Occasional crashes or glitches
- 🔍 Puzzles can be too easy at times
- 🔍 Lack of advanced or customizable difficulty options
- 🔍 Limited background or music options

**Reported bugs**

- Crashes or freezes after completing all puzzles
- Compatibility issues on older devices

**Requested features**

- More advanced or challenging puzzle designs
- Ability to create and share custom puzzles
- Option to turn off the visible outline of the target shape
- Expanded background and music selection


### BTFields Premium

[App page](https://appshunter.io/ios/app/btfields-premium/id6751348606)

Unlock the full experience of a strategic game with no advertisements or user tracking. This premium version offers complete access to all game features and content.

**Highlights:** Full access to all content, No advertisements, No user tracking, Premium experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TanZen HD free?

TanZen HD costs $2.99, with no in-app purchases.

### Is BTFields Premium free?

BTFields Premium costs $0.99, with no in-app purchases.

### Do TanZen HD or BTFields Premium have ads?

Neither TanZen HD nor BTFields Premium shows ads.

### Which is updated more often, TanZen HD or BTFields Premium?

TanZen HD ships an update every 2 months, and BTFields Premium every 4 months. Most recently, TanZen HD was updated on October 16, 2026 and BTFields Premium on October 9, 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.*