# Zahlenblitz — Master mental math with tricks

> Master mental math with tricks (iPhone/iPad app by Tom Spitzenberg.)

- Source: https://appshunter.io/ios/app/zahlenblitz/id6822597489 (this page in markdown: same URL + `.md`)
- Developer: [Tom Spitzenberg](https://appshunter.io/developer/6822597491)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 19 MB
- Languages: American English
- Released: 2026-10-20
- Data updated: 2026-10-22

## What is Zahlenblitz?

Calculate like a champion – in your head. Zahlenblitz teaches you the proven tricks of mental math: understand first, follow each step, then practice until you're lightning fast.

THE 11 TRICKS

Free:
• Adding from left to right – calculate the way you read
• Subtracting with round numbers – no awkward borrowing ever again
• Swapping percentages – 4% of 75 becomes 75% of 4
• Lightning multiplication by 11 – slide the digit sum in between

With Zahlenblitz Premium (one-time purchase, no subscription):
• Squares of numbers ending in …5
• Squares with decade anchors
• Multiplying near 100
• Cube roots on the spot
• The 1089 stunt
• Number memory: the Major System
• The weekday for any date

HOW IT WORKS

• Learn: every trick explained in clear steps – with example problems on two levels (easy & hard) and a step-by-step playback
• Trainer: random problems on 3 levels – with time, streaks and points
• Progress: your statistics for every trick, always at a glance
• Language: German & English, switchable anytime in the app

WHY ZAHLENBLITZ

• 100% offline – works on the train, at school, in airplane mode
• No ads, no accounts, no tracking
• Your progress stays on your device – your data belongs to you
• Premium: unlock once, no subscription, no hidden costs

For everyone who wants to calculate faster: students, professionals – and anyone who likes keeping their mind sharp.

Questions or feedback? Write to us: zahlenblitz.support@gmail.com

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Zahlenblitz Premium | $5.99 | one-time |


## Is Zahlenblitz safe?

Not enough ratings yet to assess Zahlenblitz.

## Is Zahlenblitz legit?

Zahlenblitz has limited verification signals. The AppsHunter Legitimacy Score for Zahlenblitz is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-20

No release notes.

## More apps by Tom Spitzenberg

- [Dead Hang Training](https://appshunter.io/ios/app/dead-hang-training/id6824050733)

All apps by Tom Spitzenberg: https://appshunter.io/developer/6822597491

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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 2026-10-22.*