# SolveOn — Ranked math problem solving

> Ranked math problem solving (iPhone/iPad app by Xiang Tan.)

- Source: https://appshunter.io/ios/app/solveon/id6806689335 (this page in markdown: same URL + `.md`)
- Developer: [Xiang Tan](https://appshunter.io/developer/6804438426)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 18 MB
- Languages: American English
- Released: 2026-09-14
- Data updated: 2026-10-31

## What is SolveOn?

SolveOn is where you challenge yourself and grow as a problem solver.

Solve original math problems, earn a Skill Rating from Ranked Runs, and climb your tier, the all-time board, and the Weekly Contest. Competition and practice are free for everyone.

• 2,800 original problems on one ladder from Grade 9 to university: number sense and algebra, linear relations, quadratics and trigonometry, functions, sequences and finance, advanced functions and calculus, contest problems in the style of high school math competitions, and first- and second-year university topics such as integration techniques, series, matrices, partial derivatives, eigenvalues, differential equations and probability.
• Pick your level once and everything follows: where your placement run starts, what mixed practice serves, and Easy / Medium / Hard labels that mean something at your level. Every level stays open.
• A scratch pad on every question — work it out on screen with a finger or Apple Pencil.
• Ranked Runs: five questions matched to your rating, starting with a placement run that finds your level. Your Skill Rating is a statistical estimate of demonstrated ability — it can go up or down, and only Ranked Runs move it.
• A Weekly Contest shared by every player, scored on accuracy and speed, and leaderboards for your rating tier and all time.
• Practice by level, topic or difficulty, as much as you like. Type exact answers — fractions, π, square roots — on a keypad built for math.
• XP and a small set of achievements that mark real progress. No streak pressure, no lives.
• No account needed. You get a random username; Sign in with Apple is optional and only keeps your progress across devices. No ads, no tracking.

SolveOn+ (optional subscription) adds insight and training depth — never a competitive advantage:
• Topic analytics with 7- and 30-day trends
• Targeted training and Retry my mistakes
• Full session history, reviewed question by question
• Skill Rating over time
• Contest-style practice sets
• Worked solutions on every practice question

SolveOn+ is CAD $6.99 per month or CAD $39.99 per year, with a 7-day free trial on the annual plan. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel subscriptions in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://solveonapp.netlify.app/privacy

All problems are original. The library is organized by level and topic, from Grade 9 through university; SolveOn is independent and not affiliated with any school, university, textbook, or contest.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| SolveOn+ Monthly | $4.99 | per month |
| SolveOn+ Annual | $39.99 | per year |


## Is SolveOn safe?

Not enough ratings yet to assess SolveOn.

## Is SolveOn legit?

SolveOn has limited verification signals. The AppsHunter Legitimacy Score for SolveOn is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.3 — 2026-09-23

New in 1.3
• 320 new original problems: more variety in contest problems, and twice the depth in first- and second-year university topics.
• Got one wrong? Edit your answer and submit again — no extra tap.
• Solve is simpler: your rating and your Ranked Run. The Weekly Contest now lives on the Ranks tab, right above its board.
• A better first run: a short "How it works" after you pick your level, a one-time guide before your placement run, and one-time hints on the keypad, the scratch pad and your level.
• "How SolveOn works" under Profile: the guide, plus how to type every kind of answer.
• Fixed: choosing a level again after deleting your data now sets your starting rating correctly.

### 1.2 — 2026-09-22

New in 1.2
• A new look: ink on paper. A warm paper background, level colours from Grade 9 to university, and a rating card you'll recognise.
• The check mark draws itself when you get one right, and your new rating gets underlined after a Ranked Run.
• A new app icon to match.
• A fair start: your first Ranked Run is a placement run that finds your level in five questions, whatever level you picked.
• Ranks now opens on Your Level — the players whose rating sits in the same tier as yours — with the next rung named.
• Two clear tabs: Solve is your rating, Ranked Runs and the Weekly Contest; Practice is everything else — mixed sets, targeted training, retries, contest-style sets, and every level's topics.
• The Daily Challenge has retired; its questions now appear in Ranked Runs.
• Ranks, simplified: Your Tier (players in your rating range), All Time (the top twenty, then the players around you), and Weekly — the Weekly Contest scored on accuracy, retries and speed.

### 1.1 — 2026-09-20

• Scratch pad: tap the pencil on any question to work it out on screen, with finger or Apple Pencil.
• Levels from Grade 9 to university: pick where you are, and Quick Solve, difficulty labels and your starting rating follow.
• 1,300 new original questions across Grade 9, 10 and 11, high school contest problems, and first- and second-year university topics.
• The All Time ladder now lists rated players only: finish a Ranked Run to join it.

### 1.0 — 2026-09-14

No release notes.

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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 2026-10-31.*