# i vs ガス溶接技能講習 | 2026年対策問題

The clearest difference is price: i at Free against ガス溶接技能講習 | 2026年対策問題's $1.99. ガス溶接技能講習 | 2026年対策問題's advantage is in-app purchases (none vs 6) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

i is free to download; ガス溶接技能講習 | 2026年対策問題 costs $1.99 up front. i sells 6 one-off in-app purchases. ガス溶接技能講習 | 2026年対策問題 asks for nothing beyond the download.

## The numbers

| Metric | i | ガス溶接技能講習 | 2026年対策問題 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/i-memorize-sheet/id803026043/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BrainApp LLC](https://appshunter.io/developer/726018559) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-memorize-sheet/id803026043)

This app allows users to hide text in study materials using a filter, mimicking a red sheet for effective memorization. It supports photos and PDFs, enabling studying anytime, anywhere with just a smartphone.

**Highlights:** Hide text with red filter effect, Study photos and PDFs, Add check marks for progress, Efficient study with navigation, Use anytime, anywhere

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| imc00010 | $0.99 | one-time |
| imc00020 | $0.99 | one-time |
| i-Mem-Contents imc00030 | $0.99 | one-time |
| i-Mem-Contents imc00040 | $0.99 | one-time |
| i-Mem-Contents imc00010 | $0.99 | one-time |
| Pro licence(campaign) | $5.99 | one-time |


### ガス溶接技能講習 | 2026年対策問題

[App page](https://appshunter.io/ios/app/2026/id6783867575)

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

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is ガス溶接技能講習 | 2026年対策問題 free?

ガス溶接技能講習 | 2026年対策問題 costs $1.99, with no in-app purchases.

### Do i or ガス溶接技能講習 | 2026年対策問題 have ads?

i shows ads; ガス溶接技能講習 | 2026年対策問題 does not.

---

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