OC vs MindCalc Arithmetic Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OC
Access essential university information, campus news, and a directory of contacts. This portal helps students, faculty, and staff stay connected with campus services and updates.
- Campus portal access
- Directory information
- University news
- Access to important services
- Mobile access
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The OC app provides mobile access to MyOC, the university's campus portal for information, directory access, news, and other important services.
MindCalc Arithmetic Trainer
Sharpen your mental math skills by solving equations where you must select two numbers to match a given result and operator. Earn points for speed, but beware of mistakes that reset your progress. Challenge a friend to a duel of arithmetic prowess.
- Equation solving with number selection
- Speed-based scoring
- Mistake penalty
- High difficulty mode
- Two-player competitive mode
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Train your mental arithmetic ability with MindCalc! This is NOT your standard "what is 7 * 13?" type of game but here the result is already known and an arithmetic operator is given. Now you need to pick two numbers out of 9 to make this equation happen. The faster you solve your equation, the more points you gain. But if you make a mistake you need to start all over - so be careful! For an extra kick choose the highest difficulty where your score will be reset to zero in case you run out of time. You can also compete against another person to see who has stronger mental arithmetic skills!
Screenshots
Verdict
The clearest difference is review sentiment: MindCalc Arithmetic Trainer at 100% against OC's 52%. OC's advantage is rating (3.6 vs 2.0). On price, ratings volume, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
OC holds the better App Store score, 3.6 against 2.0. Both are backed by a comparable volume of ratings — 9 and 12 respectively. Written reviews complicate that: 52% of OC's written reviews are positive against 100% of MindCalc Arithmetic Trainer's, so the app with the better star average is not the one people write more warmly about.
OC ships an update every 16 months, MindCalc Arithmetic Trainer every 21 months. The most recent releases landed on September 16, 2026 and August 27, 2026 respectively.
| Parameter | OC | MindCalc Arithmetic Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (9 ratings) — better | 2.0 (12 ratings) |
| Positive reviews | 52.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 | 12 — better |
| Update frequency | Every 16 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.4 |
| Further details — not scored | ||
| Size | 12 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Oklahoma Christian University | Peter Schorn |
Customer experience
OC
MindCalc Arithmetic Trainer
In-app purchases
OC
No in-app purchases
MindCalc Arithmetic Trainer
No in-app purchases
Questions
Is OC free?
Is MindCalc Arithmetic Trainer free?
Which has better reviews, OC or MindCalc Arithmetic Trainer?
Do OC or MindCalc Arithmetic Trainer have ads?
Which is updated more often, OC or MindCalc Arithmetic Trainer?
Other comparisons
