CalcKit vs EHBTrain
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CalcKit
Design and build your own custom calculators with personalized formulas and input labels. Organize them into groups for easy access. Ideal for students, scientists, and engineers needing more than standard calculator functions.
- Design calculators with custom formulas
- Up to seven user-defined variables
- Built-in trig and math functions
- Organize calculators into groups
- Unlimited personal calculator creation
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CalcKit lets you create your own personalized calculators. With CalcKit you can: - Design calculators using your own formulas and input labels - Enter formulas with up to seven user-defined variables - Make use of built-in trig and other math functions - Organize your calculators into convenient groups CalcKit has a simple, intuitive interface, and it comes with a set of example calculators to get you started. You can create an unlimited number of personal calculators. Each formula can be as simple or as complex as you need. CalcKit is ideal for students, scientists, engineers and others who do everyday calculations and need more than a limited set of canned formulas.
EHBTrain
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EHBTrain is a casual training game app designed for hand, eye, and brain coordination practice. The app offers a set of lightweight challenges that help users practice quick reactions, visual synchronization, fine motor control, spatial judgment, and sustained attention through fun game levels. Each game uses an endless level system, with difficulty gradually increasing as users progress. Core game modes include: Brain Clash: color and direction conflict reaction training Slice Path: fine control training by tracing dynamic paths Dual Sync: asynchronous dual-hand coordination training Cube Match: spatial structure observation and matching Eye Focus: target locking and focus-hold training The app also includes growth progress and achievement systems, allowing users to keep challenging higher levels and unlock training milestones. EHBTrain does not provide medical diagnosis or treatment advice. It is intended only for casual entertainment and daily coordination practice.
Screenshots
Verdict
CalcKit and EHBTrain are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | CalcKit | EHBTrain |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | โ |
| Update frequency | Every 30 months | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details โ not scored | ||
| Size | 0 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Akkyra Systems | Von Rosendo Prado |
In-app purchases
CalcKit
No in-app purchases
EHBTrain
No in-app purchases








