Stolper App vs Simple Power Grader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stolper App
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Die App „Stolpersteine Bamberg“ macht die Erinnerung an die Opfer des Nationalsozialismus sichtbar – dort, wo die Menschen einst lebten. Die Stolpersteine erinnern an die Frauen, Männer und Kinder, die während der NS-Zeit verfolgt, vertrieben und ermordet wurden. Diese App führt Sie zu den Steinen in Bamberg und erzählt die Lebensgeschichten der Menschen, an die sie erinnern. FUNKTIONEN • Karte: Alle Stolpersteine Bambergs auf einen Blick • Personen: Ein Verzeichnis mit den Biografien der Menschen hinter den Steinen • Stadtführungen: Geführte Rundgänge auf den Spuren der Erinnerung • Stolper-Funktion: Lassen Sie sich benachrichtigen, sobald Sie einem Stolperstein nahekommen – mit dem Namen der Person und einem Link zu ihrer Geschichte Alle Inhalte sind in der App enthalten und funktionieren offline. Die App verzichtet bewusst auf Werbung und Tracking. Wenn Sie die Stolper-Funktion aktivieren, wird Ihr Standort ausschließlich auf dem Gerät verarbeitet und nicht übertragen. Ein Projekt des Franz Kafka e.V. www.franzkafkaverein.de/stolper-app
Simple Power Grader
This app offers a simple yet powerful tool for educators to create and apply custom grading scales. It supports various international grading systems and allows for detailed customization of how scores are translated into grades, ensuring fair and transparent evaluation.
- 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
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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
Screenshots
Verdict
The clearest difference is in-app purchases: Stolper App at none against Simple Power Grader's 2. Stolper App also leads on update cadence (every 3 days vs every 2 months). Simple Power Grader's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Simple Power Grader sells 2 in-app purchases, starting at $2.49 per 6 months. Stolper App asks for nothing beyond the download.
Stolper App ships an update every 3 days, Simple Power Grader every 2 months. The most recent releases landed on October 12, 2026 and September 22, 2026 respectively.
| Parameter | Stolper App | Simple Power Grader |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 55.6% of reviews |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Florian Zindel | Lehrerfreund GmbH |
In-app purchases
Stolper App
No in-app purchases
Simple Power Grader
- Pro Abonnement (6 Monate)$2.496 Months
- Pro Abonnement (1 Jahr)$4.491 Year
Questions
Is Stolper App free?
Is Simple Power Grader free?
Do Stolper App or Simple Power Grader have ads?
Which is updated more often, Stolper App or Simple Power Grader?
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