# Simple Power Grader

> Customizable grading scale calculator for educators with international support. (iPhone/iPad app by Lehrerfreund GmbH.)

- Source: https://appshunter.io/ios/app/simple-power-grader/id1603627742 (this page in markdown: same URL + `.md`)
- Developer: [Lehrerfreund GmbH](https://appshunter.io/developer/1560701914)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 79 MB
- Languages: English
- Released: 2022-09-12
- Data updated: 2026-08-09
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/simple-power-grader/id1603627742/reviews.md

## What is Simple Power Grader?

The Teachers' Friend (aka Der Lehrerfreund) grading scale is considered the standard for assigning grades worldwide.

Advantages:
→ absolutely simple handling
→ fair, transparent grading
→ individual setting options (depending e.g. on the level of demand of your class work).

100% data protection - as no data is passed on
Especially as a teacher or educator, you have to pay close attention to what happens with your own data. No problem with the Lehrerfreund grading scale calculator: all data remains on your smartphone, even in the Pro version.

Reliable and competent calculation calculators - for over 10 years!
In the last 10 years, the Teachers' Friend grading scale calculators have been used millions of times on the internet. We are constantly updating and optimizing the calculation logic - there is probably hardly anyone who has deeper knowledge about grading scales than we have.

The grading scale app takes this established system to the next level:

→ Numerous setting options.
Although the operation is conceivably simple (enter maximum score and tap CALCULATE button), there are numerous setting and customisation options, e.g:
- Count half points or half correct answers
- Grading scale for questions
- Errors grading scale (e.g. for vocabulary tests)
- Output as whole, half, third, quarter, tenth grades
- Different grading scales (USA a.o.: A-F or A+/A/A- to F, custom scales can be set, e.g. 100-0, Germany 1-6, Germany upper level 15-0, Switzerland 6-1, Austria 1-5).
- Different calculation logics
- Classical grading scale (linear distribution)
- New also with kink - grade scale (pass mark in %)
- Base key (defined minimum/maximum limits)
- K1/K2 (German KMK standard, takes into account deviation in some German provinces)
- German CCI/IHK grading scale

→ Pro functions (after expiry of the trial version with 10 free calculations):
By subscribing a yearly or half-yearly plan, you gain access to further valuable functions:
- Saving your grading scales with name and remark ("Dictation class 8b - difficult") - So you can access the same grading scales several times or have your grading scales immediately at hand in discussions with students and parents.
- Export your grading scales as PDF - to share, print, archive
- Export your grading scales as CSV for Excel or similar for further processing in Excel or in pupil/class administration apps.

- You support the continuous development and improvement of the Teachers' Friend grading scale calculator.

Terms of use (EULA): https://www.apple.com/legal

## Key features

- Customizable grading scales
- Supports international grading systems
- Option to count half points
- Error grading scale option
- Multiple output formats for grades
- Save and export grading scales (Pro)
- Data protection focused

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Abonnement (1 Jahr) | $4.49 | per year |
| Pro Abonnement (6 Monate) | $2.49 | per 6 months |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/simple-power-grader/id1603627742/reviews.md

### 2/5 — im Abo zu teuer

*2025-10-28, version 2.5.3*

Eigentlich sehr hilfreich und gut gemacht aber mMn durch ein Abomodell zu teuer. Einmalzahlung hätte ich noch gemacht aber nicht jährlich/monatlich. Dann doch lieber die Homepage

### 5/5 — Sehr hilfreich

*2025-05-21, version 2.5.3*

Extrem hilfreicher Notenschlüsselrechner!

### 1/5 — Funktioniert nicht

*2024-10-09, version 2.5.1*

Wenn ich auf den berechnen Button drücke passiert nichts.

### 4/5 — Offine-Betrieb

*2024-04-11, version 2.5.0*

Kann offline nicht in die Anwendung kommen. Das finde ich hinderlich.

### 5/5 — Super!

*2022-12-20, version 1.0.5*

Ich bin sehr zufrieden mit der App. Bisher hatte ich immer die Website aufgerufen. Mit der App wird es noch komfortabler.
Die App ist sehr übersichtlich und einfach. Das mag ich. :)

5€ im Jahr? Für mich absolut okay. Zahle ich gerne
Da kostet mein Döner am Wochenende mehr. :-D

Frohe Weihnachten

### 1/5 — Abo

*2022-11-06, version 1.0.5*

Ich finde es frech, für einen simplen Algorithmus ein Abo zu verlangen. Ich wäre bereit 5€ als einmalige Zahlung zahlen, mehr ist absolut unverhältnismäßig.
Zur App selbst kann man nicht viel sagen, es nervt, die Punktzahl per + & - einzustellen (dauert zu lange) und man kann auch keine ungeraden Punktzahlen einstellen. Sonst tut sie was sie soll.

### 5/5 — Top!

*2022-10-24, version 1.0.3*

Ich benutze den Notenschlüsselrechner auf der Webseite seit Jahren, mit der App noch komfortabler und ohne nervige Werbung. Die Archiv-Funktion scheint mir auch ganz nützlich zu sein.

### 1/5 — Leider nicht kostenlos

*2022-10-20, version 1.0.3*

Ohne Abo kann der Notenschlüssel 10x berechnet werden. Dann lieber kostenlos die Webseite.

### 5/5 — Grundlegende App für Lehrkräfte

*2022-09-25, version 1.0.3*

Ich nutze die Seite www.lehrerfreund.de bereits seit Jahren. Als ich über den Newsletter von dieser App erfuhr, habe ich sie sofort heruntergeladen und auch die Pro-Version erworben, da ich die Idee, Notenschlüssel anlegen und speichern zu können, sehr ansprechend fand. Das ständige Erstellen und Ausdrucken der Notenschlüssel fällt weg und spart Papier und Zeit. Anfängliche Schwierigkeiten auf meinem Gerät wurden vom Entwickler binnen kürzester Zeit behoben. Der Support war sehr zuvorkommend und hilfreich.

## Frequently asked questions about Simple Power Grader

### What is Simple Power Grader?

Simple Power Grader is an education app designed to help teachers create and apply custom grading scales. It offers a fair and transparent method for assigning grades based on various international standards and individual classroom needs.

### How does Simple Power Grader ensure data protection?

Simple Power Grader prioritizes data protection by keeping all data on the user's smartphone. No personal or grading data is passed on to external servers, ensuring privacy for educators.

### Can I customize the grading scale in Simple Power Grader?

Yes, Simple Power Grader offers numerous setting and customization options. You can choose to count half points, set grading scales for questions, define error grading scales, and select different output formats for your grades.

### What international grading systems does Simple Power Grader support?

Simple Power Grader supports a variety of international grading systems, including USA (A-F), Germany (1-6, 15-0), Switzerland (6-1), and Austria (1-5). Custom scales can also be set.

### What are the Pro functions in Simple Power Grader?

The Pro functions, available via subscription, include saving grading scales with names and remarks, exporting grading scales as PDF for sharing or printing, and exporting as CSV for use in spreadsheet software like Excel.

### How often is Simple Power Grader updated?

Simple Power Grader was last updated on June 16, 2026, with version 2.5.4. The developer states they are constantly updating and optimizing the calculation logic, indicating a commitment to ongoing improvement.

### What devices is Simple Power Grader compatible with?

Simple Power Grader is compatible with iPhone, iPad, and iPod devices, indicated by its age rating of 4+ and its availability on Apple's platform.

### Does Simple Power Grader have ads?

No, Simple Power Grader does not contain advertisements. The app is free to download and use, with optional in-app purchases for Pro features.

## Version history (last 5 releases)

### 2.5.4 — 2026-06-16

- Archive: Features full-text search capability and supports manual sorting.
- IHK calculator: Bug fix resolving metadata display for „best grade starting at … points"
- IHK calculator: Added option to display whole grades
- IHK calculator: Adjustments in line with the currently valid tables
- Bug fix for import function
- Layout improvement for export function: input field for email was partially hidden

### 2.5.3 — 2025-01-16

Minor bug fixes

### 2.5.2 — 2024-12-17

Packages and dependencies updated
Fixed calculator button bug

### 2.5.1 — 2024-06-03

Improvements to the calculation logic of the error calculator
Minor design improvements

### 2.5.0 — 2024-02-05

Now also with kink - grade scale (pass mark in %)

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## More apps by Lehrerfreund GmbH

- [Book Converter](https://appshunter.io/ios/app/book-converter/id1560701912)
- [Notenschlüsselrechner EDU 2024](https://appshunter.io/ios/app/notenschlusselrechner-edu-2024/id6461211204)
- [Simple Power Grader EDU 2025](https://appshunter.io/ios/app/simple-power-grader-edu-2025/id6739069320)

All apps by Lehrerfreund GmbH: https://appshunter.io/developer/1560701914

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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 2026-08-09.*