Stepik vs Complex Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stepik
Access a vast marketplace of online courses with video lectures and practical assignments. Download content for offline learning and study a wide range of subjects from leading institutions and companies.
- Online course marketplace
- Video lectures
- Practical assignments
- Offline content download
- Courses from IT companies and universities
- Diverse subject offerings
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Stepik is a online courses marketplace. Now also mobile! Courses contain video lectures and practical assignments, which you can learn at any time. With this app, you can also download all the content to watch offline or on the road. There are many popular online courses from leading IT companies and universities on Stepik: • JetBrains • Launch code • Universitat Autonoma de Barcelona • TU Delft • UC San Diego ... and other educational organizations, companies and instructors. On Stepik you will find courses on: • Computer Science and Technology • Mathematics • Biology and Bioinformatics • Economics • Psychology • Languages ... and other disciplines. Learn the new!
Complex Calc
Perform advanced calculations with complex numbers, including conversions between rectangular and exponential forms. Features quick copy-paste functionality and automatic dark mode for a seamless user experience.
- Rectangular to exponential form conversion
- Exponential to rectangular form conversion
- Four basic operations with complex numbers
- Quick copy-paste results
- Auto dark mode
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My features are: — On fly conversion from rectangular form to exponential and vise versa — Four most demanded operations with complex numbers — Quick copy-paste from result to the next operation — Auto dark mode
Screenshots
Verdict
The clearest difference is in-app purchases: Complex Calc at none against Stepik's 10. Stepik's advantage is update cadence (weekly vs every 6 months) and ratings volume (890 vs 2). On price, rating, ads and iOS requirement 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. Stepik sells 10 one-off in-app purchases. Complex Calc asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Stepik against 5.0 for Complex Calc. That said, the two scores are not equally well evidenced: Stepik has 890 ratings behind it against 2, so its average is the more settled of the two.
Stepik ships an update weekly, Complex Calc every 6 months. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.
| Parameter | Stepik | Complex Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (890 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 68.6% of reviews | — |
| Number of ratings | 890 — better | 2 |
| Update frequency | Weekly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 122 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Iuliia Tikhokhod | Yevhen Pyvovarov |
Customer experience
Stepik
Complex Calc
Bugs and requests
Stepik
Reported bugs
3 issues- App crashes on iOS 18
- Videos not loading on iPhone XR
- Landscape mode causes app to crash
Requested features
3 requests- Offline mode for courses
- Language selection options
- Improved performance and stability
Complex Calc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Stepik
- Course Tier 78$299.99
- Course Tier 79$349.99
- Course Tier 80$399.99
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- Course Tier 81$449.99
- Course Tier 82$499.99
- Course Tier 83$599.99
- Course Tier 84$699.99
- Course Tier 85$799.99
- Course Tier 86$899.99
- Course Tier 87$999.99
Complex Calc
No in-app purchases
