SVA vs Maths Retriever
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SVA
This app empowers students to identify and organize local community projects, fostering leadership and teamwork. It extends a spirit of volunteerism to primary school classrooms nationwide, encouraging young people to become lifelong volunteers.
- Organize local community projects
- Engage students in volunteerism
- Nationwide school program
- Develop leadership skills
- Teach cooperation
- Report on project achievements
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Student Volunteer Army was formed as a charitable trust which has been continually led by a student executive and guided by a board of trustees. Each year students organise over 50 local projects that engage 3000 students at the University of Canterbury. In 2017 following a request by Primary Schools, SVA launched a nationwide ‘SVA Schools’ programme to extend the SVA spirit to primary school classrooms. In classes, each year 32,000 students identify a local project, build a team, develop a plan, operate their project, and report on what they have achieved. The programme teaches cooperation and leadership skills to young kiwis to become lifelong volunteers!
Maths Retriever
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Maths Retriever marks your handwriting in red ink, on your own working. Write the answer on the page with the Pencil. Tap Check. Ticks where you earned the marks, crosses where you lost them, and a note on the line that went wrong. ALL FOUR IB MATHS COURSES AA SL, AA HL, AI SL, AI HL. Pick yours once and everything follows: questions, calculator rules, grade boundaries. WHAT YOU GET - Exam-style questions, marked the way the exam marks. - Practise by topic, or one random question when you've got ten minutes. - Hints that get more specific each time and never give the answer away. - A mark scheme for every question. Tap Why? on any line. - Timed mock exams, marked the same way. - A diagnostic test with a grade out of 7 and a topic breakdown. - A daily plan that goes after your weak sub-topics. - A review deck that brings back what's fading. - A predicted grade that grows with every mark, shown as a range. - A mistake log that files each lost mark by what went wrong. FREE AND PRO Free: Foundation questions in every topic, answers with the key working, 5 marked checks and 10 hints a day. Pro: Standard and Exam-style questions, mocks and diagnostics, unlimited marking, full mark schemes, per-topic grades, the mistake log. PRIVATE No account, no sign-up. Your work stays on your device unless you send a page for marking. Made for iPad and Apple Pencil. Works on iPhone with your finger. Maths Retriever is an independent study tool and is not affiliated with, endorsed by, or connected to the International Baccalaureate Organization. "IB" is used only to describe the curriculum the app supports. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: SVA at none against Maths Retriever's 2. SVA also leads on iOS requirement (14.4 vs 17.0). Maths Retriever's advantage is update cadence (every 8 days vs every 5 weeks). On price, 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. Maths Retriever sells 2 in-app purchases, starting at $12.99 per month. SVA asks for nothing beyond the download.
SVA ships an update every 5 weeks, Maths Retriever every 8 days. The most recent releases landed on September 25, 2026 and September 13, 2026 respectively.
| Parameter | SVA | Maths Retriever |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 43 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Student Volunteer Army Foundation | Hongzhi Wu |
In-app purchases
SVA
No in-app purchases
Maths Retriever
- Pro monthly$12.991 Month
- Diploma yearly$99.991 Year









