# FlashToPass vs HudsonAlpha iCell

The clearest difference is rating: FlashToPass at 4.4 against HudsonAlpha iCell's 3.0. FlashToPass also leads on ratings volume (934 vs 296). HudsonAlpha iCell's advantage is in-app purchases (none vs 3) and update cadence (every 4 weeks vs every 4 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. FlashToPass sells 3 in-app purchases, starting at $1.99 per month. HudsonAlpha iCell asks for nothing beyond the download.

FlashToPass holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 934 and 296 respectively. Written reviews complicate that: 67% of FlashToPass's written reviews are positive against 70% of HudsonAlpha iCell's, so the app with the better star average is not the one people write more warmly about.

FlashToPass ships an update every 4 months, HudsonAlpha iCell every 4 weeks. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | FlashToPass | HudsonAlpha iCell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (934 ratings)](https://appshunter.io/ios/app/flashtopass-math-flash-cards/id330482882/reviews)** | [3.0 (296 ratings)](https://appshunter.io/ios/app/hudsonalpha-icell/id364882015/reviews) |
| Number of ratings | **934** | 296 |
| Positive reviews | 66.7% of reviews | **69.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 21 MB | 83 MB |
| Requires iOS | 26.0 | **8.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scybot Technologies, L.L.C.](https://appshunter.io/developer/327697345) | [HudsonAlpha Institute for Biotechnology](https://appshunter.io/developer/364882018) |

## What reviewers say

### FlashToPass

[App page](https://appshunter.io/ios/app/flashtopass-math-flash-cards/id330482882)

Master math facts with interactive flashcards. Reinforce concepts, practice addition for free, and unlock more operations and customization through in-app purchases. Supports dark mode and offers printable exports.

**Highlights:** Interactive math flashcards, Addition practice (free), Customizable card sets, Printable exports, Modern design with dark mode, Practice by number and difficulty

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Features, Monthly | $1.99 | per month |
| Unlock All Features | $4.99 | per year |
| Lifetime Unlock | $9.99 | one-time |

**What reviewers like**

- 👍 Great for learning math facts
- ⏱️ Helpful timer feature
- 🎓 Useful for practicing math skills
- 🌟 Engaging and addictive
- 🎨 Good visual design

**What reviewers complain about**

- 🔒 Locked content requires purchase
- 💰 Ads can be distracting
- 🐛 Crashes and compatibility issues
- 🔍 Limited customization options
- 🕹️ Repetitive gameplay

**Reported bugs**

- Crashes when entering answers
- Timer not working as expected
- Compatibility issues with iOS updates
- Keyboard disappearing during use

**Requested features**

- Allow setting number of questions
- Add more difficulty levels
- Include doubles facts practice
- Provide detailed performance tracking
- Improve keyboard layout and functionality


### HudsonAlpha iCell

[App page](https://appshunter.io/ios/app/hudsonalpha-icell/id364882015)

Explore the inner workings of animal, plant, and bacteria cells in a 3D interactive environment. Tap on cellular components to learn their names and functions. Rotate and zoom to get a comprehensive understanding of cellular biology.

**Highlights:** 3D interactive cell models, Animal, plant, and bacteria cell examples, Tap to select and learn organelle functions, Rotate and zoom functionality, Adjustable text size and description levels

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for learning about cells
- 🚀 Great 3D visuals and interactive features
- 💡 Different levels of complexity for various users
- 🎓 Useful for students and teachers

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔍 Limited content and organelles covered
- 🤔 Lacking in-depth information and functionality
- 🙄 Boring and oversimplified for some users

**Reported bugs**

- Frequent crashes and app instability
- Compatibility issues with newer iOS versions
- Missing or incorrectly labeled organelles

**Requested features**

- Add more cell types (e.g. fungi, virus)
- Provide quizzing and assessment features
- Improve level of detail and explanations
- Allow users to explore cell structures in more depth


## Frequently asked questions

### Is FlashToPass free?

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

### Is HudsonAlpha iCell free?

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

### Which has better reviews, FlashToPass or HudsonAlpha iCell?

FlashToPass is rated higher. FlashToPass averages 4.4 out of 5 from 934 ratings, while HudsonAlpha iCell averages 3.0 from 296 ratings.

### Do FlashToPass or HudsonAlpha iCell have ads?

Neither FlashToPass nor HudsonAlpha iCell shows ads.

### Which is updated more often, FlashToPass or HudsonAlpha iCell?

FlashToPass ships an update every 4 months, and HudsonAlpha iCell every 4 weeks. Most recently, FlashToPass was updated on November 13, 2026 and HudsonAlpha iCell on November 10, 2026.

---

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