Foldmetry vs Mental Rotation Spatial Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Foldmetry
Practice spatial reasoning skills for 11+ and CAT4-style assessments. Offers interactive exercises in mental rotation, cube nets, perspective taking, paper folding, block assembly, and cross sections. Unlock full features with a subscription or lifetime purchase.
- Mental Rotation exercises
- Cube Nets prediction
- Perspective Taking visualization
- Paper Folding reversal
- Block Assembly counting
- Cross Sections slicing
- Timed exam-style practice
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Practise spatial skills for 11+ non-verbal reasoning and CAT4-style spatial tasks. Preparing for grammar school or independent school assessments? Foldmetry offers short, focused practice in visualising shapes, understanding folds, and reasoning in 3D. Use it alongside your wider preparation: it is not a complete 11+ or CAT4 course and does not reproduce official tests. Foldmetry turns six spatial-reasoning skills into clear, interactive exercises: • Mental Rotation: recognize a solid after it turns in 3D • Cube Nets: predict how a flat net folds into a cube • Perspective Taking: visualize structures from another viewpoint • Paper Folding: reverse folds and predict position patterns • Block Assembly: count volume, missing cubes, and exposed faces • Cross Sections: find exact slices through 3D structures START FREE Start all six paths, complete the first two lessons in each path, try a daily mixed session, and review up to three missed questions at a time. Best scores, stars, streaks, and recent progress stay on your device. TIMED EXAM-STYLE PRACTICE With Pro, try 12 mixed questions across all six skills, with 40 seconds per question. Review accuracy and response time by skill to plan your next session. This is Foldmetry's own practice format, not an official exam simulation. PRACTICE YOUR WAY WITH FOLDMETRY PRO Unlock all 36 guided lessons, full ten-question Mistake Review, unlimited practice at difficulty levels 1–10, selectable session lengths, and complete training history. Choose an annual subscription with a 7-day free trial for eligible customers, or unlock Pro with a one-time lifetime purchase. Pricing and eligibility appear in the App Store purchase sheet. Restore purchases at any time from Settings. PRIVATE BY DESIGN No account. No ads. No behavioral tracking across apps or websites. Your training history, mistake queue, and preferences remain on your device. Foldmetry uses privacy-friendly anonymous analytics (TelemetryDeck) to understand which features help; you can turn this off in Settings. Exercises and licensed paper-folding animations work offline; a network connection is used for App Store purchases and optional analytics. Foldmetry is an independent educational practice tool. It does not measure IQ, provide medical advice, guarantee academic or exam results, or claim affiliation with any examination authority. CAT4 is a GL Assessment test; Foldmetry is not affiliated with or endorsed by GL Assessment. Terms of Use: https://sdli416.github.io/MyStockYardagesPrivacy/foldmetry/terms/ Privacy Policy: https://sdli416.github.io/MyStockYardagesPrivacy/foldmetry/privacy/
Mental Rotation Spatial Test
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Spatial thinking is a skill. Build yours. Most brain training can't honestly promise improvement. Spatial reasoning is the exception: Uttal's meta-analysis of 217 studies found that spatial training produces durable gains that transfer to new spatial tasks (effect size g ≈ 0.47). Hone Spatial is built on that evidence — and on its other finding, that teaching strategy is a large part of the effect. Every unit leads with technique, then drills it. THE TWELVE PUZZLES • Block rotation: same shape rotated, or its mirror twin? The classic Shepard–Metzler task. • Flat rotation: the same question on 2D shapes, where flips are the trap. • Paper folding: fold, punch, unfold — where are the holes? • Cube nets: which cube does this net fold into? • Cross-sections: slice a solid — what shape is the cut? • Views: which is this figure's top view? Its front view? • Block counting: hidden cubes must be there; nothing floats. • Exposed faces: six, minus the neighbours, minus the ground. • Gear trains: which way does the last gear turn, and how fast? • Pulleys: count the rope segments — that IS the mechanical advantage. • Viewpoints: stand at the arrow; what order do the objects appear? • Hidden figures: find the simple shape camouflaged in the busy drawing. STRATEGY FIRST Each family comes with the technique that actually solves it, taught with worked examples: holistic rotation, the chirality check (a mirrored figure can NEVER be rotated into its twin), the cube-net rules, folding backwards, the gear rules, the pulley rope-segment rule, sketching, and knowing when verbal encoding fails. YOUR OWN NUMBERS Your mental rotation rate in degrees per second, your mirror-catch accuracy, your accuracy by unit, your solve times — measured from your own answers, never invented. TEST PREPARATION, HONESTLY Gears, pulleys and rotation are a standing section of the ASVAB and most mechanical-aptitude batteries; the folding and rotation tasks are staples of spatial-ability tests generally. Practising here is practising that actual content. Hone Spatial is not an IQ test, produces no intelligence score, and never diagnoses anything. PRIVATE BY DESIGN No account. No analytics. No tracking. Everything stays on your device; export or erase it all from Settings at any time. ADAPTIVE, GENERATED, FAIR Every puzzle is generated fresh from a seed with a constructed answer key — the correct answer is the actual unfolding, the actual rotation, the actual count — and each drill holds its own level, stepped from your recent scores. Guessing floors far below the promotion bar: random tapping never levels up. SUBSCRIPTION Practice and lesson texts require a Hone Spatial Pro subscription (monthly or yearly), with a free trial for eligible new subscribers. Your history and every measurement stay readable forever, subscription or not. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://studioam.art/apps/hone-spatial/privacy/
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Verdict
The clearest difference is iOS requirement: Foldmetry at 17.0 against Mental Rotation Spatial Test's 26.0. On price, ads, in-app purchases 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. Foldmetry sells 2 in-app purchases, starting at $9.99 per year and Mental Rotation Spatial Test sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Foldmetry | Mental Rotation Spatial Test |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 16 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 思迪 李 | Hyun Sik Kim |
In-app purchases
Foldmetry
- Foldmetry Pro Annual7 Days trial$9.991 Year
- Foldmetry Pro Lifetime$24.99
Mental Rotation Spatial Test
- Pro Monthly3 Days trial$4.991 Month
- Pro Yearly3 Days trial$29.991 Year
Questions
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Is Mental Rotation Spatial Test free?
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