# i vs Punch Board Calculator

The clearest difference is price: i at Free against Punch Board Calculator's $0.99. i also leads on update cadence (monthly vs every 10 months) and ratings volume (441 vs 18). Punch Board Calculator's advantage is rating (3.8 vs 2.1) and review sentiment (42% vs 10%). On ads, in-app purchases and device support there is nothing between them.

i is free to download; Punch Board Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Punch Board Calculator holds the better App Store score, 3.8 against 2.1. That said, the two scores are not equally well evidenced: i has 441 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 10% of i's written reviews are positive against 42% of Punch Board Calculator's.

i ships an update monthly, Punch Board Calculator every 10 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | i | Punch Board Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [2.1 (441 ratings)](https://appshunter.io/ios/app/i-flashdevice-hd/id1098089751/reviews) | **[3.8 (18 ratings)](https://appshunter.io/ios/app/punch-board-calculator/id1130695925/reviews)** |
| Number of ratings | **441** | 18 |
| Positive reviews | 9.7% of reviews | **42.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | **Free** | Paid |
| Size | 74 MB | 9 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [ShenZhen 0101 technology Co.,Ltd](https://appshunter.io/developer/994444596) | [Nicolas Camenisch](https://appshunter.io/developer/1122054654) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-flashdevice-hd/id1098089751)

Easily manage files on a USB drive connected via a wired connection. Back up and restore photos and contacts directly to and from the USB drive without needing a network connection.

**Highlights:** Connect to USB drive, File management, Photo album backup, Photo album restore, Contact backup, Contact restore, Offline backup

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 💡 Convenient for transferring photos/videos
- 👍 Works well with iPhone and iPad

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🔌 Unreliable connection with device
- 🤯 Confusing and unintuitive interface
- 🤔 Limited functionality compared to claims

**Reported bugs**

- Device not recognized or shown as offline
- Corrupted or lost files during transfer
- Compatibility issues with newer iOS versions

**Requested features**

- Ability to create folders and organize files
- Support for more file types beyond photos/videos
- Improved stability and reliability


### Punch Board Calculator

[App page](https://appshunter.io/ios/app/punch-board-calculator/id1130695925)

Easily craft custom envelopes and boxes of any size. Input your desired dimensions, and the app calculates the required paper size and scoring/punching points. Supports both inches and centimeters, with the ability to save favorite designs.

**Highlights:** Custom envelope and box sizing, Automatic paper size calculation, Scoring and punching point guidance, Inch and centimeter unit support, Save favorite designs

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is Punch Board Calculator free?

Punch Board Calculator costs $0.99, with no in-app purchases.

### Which has better reviews, i or Punch Board Calculator?

Punch Board Calculator is rated higher. i averages 2.1 out of 5 from 441 ratings, while Punch Board Calculator averages 3.8 from 18 ratings.

### Do i or Punch Board Calculator have ads?

Neither i nor Punch Board Calculator shows ads.

### Which is updated more often, i or Punch Board Calculator?

i ships an update monthly, and Punch Board Calculator every 10 months. Most recently, i was updated on October 29, 2026 and Punch Board Calculator on October 29, 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.*