# i know percent — user reviews

> 16 indexed App Store user reviews of i know percent by Dmitry Mashkin, rated 4.80/5 from 20 ratings.

- Source: https://appshunter.io/ios/app/i-know-percent/id1370838641/reviews
- App overview in markdown: https://appshunter.io/ios/app/i-know-percent/id1370838641.md
- Rating breakdown: 5★ 16 · 4★ 3 · 3★ 1 · 2★ 0 · 1★ 0

## Newest reviews (1 of 16)

### 5/5 — 五星只求看到

*2020-04-23*

求开发者大大适配一下iPad屏幕呀！谢谢！软件还不错，继续加油哦！

## Most critical reviews (10 lowest-rated)

### 1/5 — Disappointed

*2023-02-19*

I had hoped this app would work as it would be really helpful for my property purchase. I wanted to know a percentage value. I entered the figures but there was nothing to press for the calculation. I even deleted the app and reinstalled it.  Still didnt work.

**Developer response:** Hello, the application works stably on all available devices. Would you help us if you wrote the model of your phone

### 1/5 — Doesn't Work

*2022-08-07, version 3.0*

👎App doesn't Work

### 1/5 — Beware!

*2022-07-21, version 3.0*

UPDATE: as you can see by the developer response, he’s not happy he got called out!

Regardless of his assertions that the app does not collect data, the fact is the privacy statement very clearly states your data is collected. Read it if you don’t believe me. This means that legally, even if the developer says the app doesn’t, it probably does, or may do at some random point in time. Otherwise, why state it in there?

I repeat: beware this app and this developer

Original review: Russia-based developer. Also states data is not collected but privacy policy very clearly states it does.

### 4/5 — 求增加中文

*2022-04-17*

求增加中文

**Developer response:** Ok

### 4/5 — 能够实时显示计算结果就更好啦

*2021-02-03*

经常计算百分比的人挺有用，发现每次输入必须按“完成”才可以看到结果，要是能够实时显示计算结果就更好啦，减少按键次数！

### 5/5 — Great app

*2025-11-08, version 3.1.95*

Flexible ratios

### 5/5 — пацаны

*2022-10-29*

воообщее

### 5/5 — 希望增加支持简体中文版

*2022-10-17*

五星好评，希望在下个版本中增加简体中文的支持，谢谢

**Developer response:** 😌❤️

### 5/5 — Супер

*2022-08-30*

Ничего лишнего

**Developer response:** Спасибо!

### 5/5 — Fine thing, but missing some points…

*2022-05-05*

Add another function like “X is how many % of Y”…  you have one function just opposite of this… but this is missing… add this one on next update….

Thanks for adding the asking….  :-)

**Developer response:** Let's try to do it :)

## Most praised reviews (5 highest-rated)

### 5/5 — 3.0

*2022-04-16*

希望汉化下，升级3.0后没有以前的好友，希望增加个选择保留老版本

**Developer response:** language support will come later

### 5/5 — ⭐️⭐️⭐️⭐️⭐️ + no ads!

*2021-09-07*

Удивительная простая программа. Было бы неплохо добавить больше функциональных возможностей в будущем.

### 5/5 — 已经ipad适配了

*2021-02-03*

还真是一款小巧方便的应用,iphone ipad都支持，超好用的，多谢多谢

### 5/5 — Супер!

*2020-12-07*

Отличный минималистичный дизайн и практичность! Ничего лишнего, то что искал!

**Developer response:** Спасибо!

### 5/5 — Easy to use

*2020-07-18*

Upon the suggestion of iReviews on YouTube I decided to give this app a try and it’s very easy to use.

 Self explanatory but has a little (i) at the top for help. No ads and free is a definite plus.  Great for shopping and to calculate the % of my raise at work. 

I use this to calculate the percentage of my salary from last year to this year and compare the % with the rate of inflation.

**Developer response:** Thank you for the kind words 😊

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*