# F2Pool vs Bubble Level

The clearest difference is review sentiment: Bubble Level at 100% against F2Pool's 41%. Bubble Level also leads on rating (5.0 vs 4.0). F2Pool's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Bubble Level sells 1 one-off in-app purchase. F2Pool asks for nothing beyond the download.

Bubble Level holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: F2Pool has 183 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 41% of F2Pool's written reviews are positive against 100% of Bubble Level's.

F2Pool ships an update every 3 weeks, Bubble Level every 2 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | F2Pool | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (183 ratings)](https://appshunter.io/ios/app/f2pool/id1403702113/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bubble-level-diy-angle-finder/id6816330217/reviews)** |
| Number of ratings | **183** | 2 |
| Positive reviews | 41.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 59 MB | 11 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [F2Pool Information Technology Co., Ltd.](https://appshunter.io/developer/1403702112) | [Tianyu Lu](https://appshunter.io/developer/6810794695) |

## What reviewers say

### F2Pool

[App page](https://appshunter.io/ios/app/f2pool/id1403702113)

Manage your cryptocurrency mining operations from anywhere. Monitor your machines, track revenue, and switch between mining profitable coins with ease. Receive custom alerts for your mining activities.

**Highlights:** Manage multiple mining accounts and currencies, Monitor worker status and hashrate, Set custom mining alerts, Compare mining hardware and view high-yield machines, Switch between mining profitable coins

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 👍 Useful revenue comparison
- 👍 Informative app
- 👍 Good pool service
- 👍 Great app
- 👍 Push notifications for issues

**What reviewers complain about**

- 🐛 Login issues after update
- 🐛 Difficult withdrawal process
- 🐛 Server errors reported
- 🐛 Revenue shown as zero often
- 🐛 No privacy

**Reported bugs**

- Cannot login after last update due to QR code scanning issue
- Yesterday's revenue is shown as zero very often
- Autocorrect enabled on code verification and username textboxes
- App closes when trying to view BTC mining details
- App crashes when entering BTC page

**Requested features**

- Add Russian language support
- Add watchOS app with notifications and hashrate data
- Add ELA-NMC support on iOS/Android
- Add payout threshold of 0.001 BTC for Bitcoin mining
- Add offline equipment notifications


### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-diy-angle-finder/id6816330217)

Transform your device into a precise spirit level and inclinometer. Features innovative face-down measurement, dual bullseye and tubular levels, and audio/haptic feedback for accurate alignment in various projects.

**Highlights:** Face-down precision mode, Dual bullseye and tubular levels, Audio and haptic zero feedback, Relative zero and calibration, Angle lock/hold, Digital angle readout

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is F2Pool free?

F2Pool is free to download, with no in-app purchases.

### Is Bubble Level free?

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

### Which has better reviews, F2Pool or Bubble Level?

Bubble Level is rated higher. F2Pool averages 4.0 out of 5 from 183 ratings, while Bubble Level averages 5.0 from 2 ratings.

### Do F2Pool or Bubble Level have ads?

Bubble Level shows ads; F2Pool does not.

### Which is updated more often, F2Pool or Bubble Level?

F2Pool ships an update every 3 weeks, and Bubble Level every 2 weeks. Most recently, F2Pool was updated on November 2, 2026 and Bubble Level on November 6, 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.*