Addition Mathematics vs Subtractor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Addition Mathematics
This app teaches children multi-digit addition with step-by-step guidance and positive reinforcement. It adapts to the student's learning pace, offering practice on specific number combinations and even recognizing handwritten answers. Advanced features and customization options are available via in-app purchase.
- Multi-digit addition practice
- Step-by-step instructions
- AI handwriting recognition
- Progress monitoring
- Customizable practice
- Positive reinforcement
Read full descriptionHide full description
ADDITION is a smart math app that teaches children how to add multi-digit numbers together. It monitors what the student knows and where they still need practice. It teaches step-by-step how to add small numbers and then progresses to multi-carry addition. ADDITION is encouragement-based providing positive reinforcement for the student's effort both visually and auditorily. The student, parents, and teachers can all quickly see where the student needs more practice in a color-coded format. Go from simple math facts like 0+1=1 to more difficult equations such as 345+789, with the app showing you the correct answer if you make a mistake. Full customization is possible including choosing the specific digit combinations you want to review or practice. Excellent for beginners just learning addition or a quick review for slightly older students. Students practice writing numbers too. AI converts the student's handwritten numbers into digits. Single-digit addition is free. Multi-digit addition with carrying along with custom colors, specific numbers to learn, different character voices, and background music requires an in-app purchase. FEATURES ► Simple and visually appealing ► Make it as easy or hard as you want + 1-3 digit numbers + without carries + with carries + only practice certain digits or all of them ► Step-by-step instructions if a student wants + forces precise digit order into the correct fields + makes it impossible to move on with a wrong digit + with visual instructions for each entry ► Animated character with encouragement + completely optional for older students + 3 different voices ► Complete customization + specific numbers included or excluded + color design of screens + option to show the correct answer in case of an error + choices of optional background music + sounds/vibrations on right/wrong answers + moves to the next problem if the correct answer is input ► Intelligent + Remembers mistakes and helps practice for mastery ► AI-based handwriting Recognition + write the answers + great for practicing handwriting ► Feedback / Monitoring + Positive/Negative sound reinforcement + Summary of progress in both table and graph form + Easy for student/parent/teacher to monitor progress ► NO ADS, ALL FEATURES ENABLED TERMS & CONDITIONS: http://www.programisprime.com/additionterms.html PRIVACY POLICY: http://www.programisprime.com/additionprivacy.html WE LOVE FEEDBACK We appreciate your feedback. Please email us at support@programisprime.com with any suggestions or questions. If you are happy with this update, please let us know by rating and reviewing us in the App Store! © 2023 Programis Prime LLC
Subtractor
Read full descriptionHide full description
Subtractor is a native iOS app coded in Swift, designed as a personal project to help students master subtractions effortlessly. With interactive exercises, customizable practice sessions, and progress tracking, Subtractor creates an engaging learning experience tailored to individual needs. Its sleek, distraction-free interface and responsive design make it a perfect tool for students, parents, and educators seeking to build strong foundational math skills.
Screenshots
Verdict
The clearest difference is in-app purchases: Subtractor at none against Addition Mathematics's 1. On price, update cadence, ads and device support 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. Addition Mathematics sells 1 one-off in-app purchase. Subtractor asks for nothing beyond the download.
Addition Mathematics ships an update every 2 weeks, Subtractor every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Addition Mathematics | Subtractor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 21 — better | — |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 141 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | PROGRAMIS PRIME LLC | David Kelen |
In-app purchases
Addition Mathematics
- Get All Features$3.99
Subtractor
No in-app purchases
Questions
Is Addition Mathematics free?
Is Subtractor free?
Do Addition Mathematics or Subtractor have ads?
Which is updated more often, Addition Mathematics or Subtractor?
Other comparisons















