Comparison

FormosaAR vs GridFix

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

FormosaAR

Features
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How would you describe Taiwan in one sentence? How can we tell the story of this land to the next generation? Where can foreign visitors begin to understand Taiwan? And even for us, have we truly seen Taiwan? Perhaps we can delve deeper, to re-experience Taiwan and cherish the beauty of this land. This is an AR magic app themed around Taiwan. Through our self-developed "Beauty of Taiwan" app and our rich, original Taiwanese image database, scanning photos with mobile devices (such as phones or tablets) brings static books to life. Augmented Reality (AR) feels like a language of the new age, triggering the viewer's imagination and observation as they encounter unprecedented technology. The "Beauty of Taiwan AR Magic Book" presents the land as its core in an entertaining and original manner. Through technological innovation, it showcases the added value of culture.

About

GridFix

Features
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Tilt your camera up at a building and the verticals lean inward. Let your hand tip and the horizon goes crooked. GridFix fixes this the most intuitive way possible: draw guide lines along the edges that should be straight, and the app computes the perspective correction that makes them truly vertical and horizontal. And now, you can get it right at the moment you shoot. LIVE-CORRECTED CAMERA - The corrected image shows live in the viewfinder. What you see is what you get, no guesswork afterwards - A tilt readout shows your pitch and roll at all times - Correct verticals only, or auto-level the horizon as well - Pinch to zoom, EV compensation scale, long-press AE/AF lock, self-timer, volume-button shutter - Level sensor calibration: a fixed offset from your case or sensor tolerance is measured once and subtracted from then on - The session gallery lets you review shots, compare with the original, or send one straight into the editor EDIT IMPORTED PHOTOS - Guide-line correction: no blind slider fiddling, just show the app which lines should be straight - Double-tap to zoom: magnify right where you are working and trace window frames and beams precisely - A loupe keeps the edge visible while you drag, positioned for right- or left-handed use - Lens distortion correction: fixes the outward bow of ultra-wide edges, which perspective correction alone cannot fix - Fine-tuning: adjust every axis manually after the correction - Crop, rotate, flip, and auto-trim the blank edges correction leaves behind - Edit history: every session is saved automatically, so you can reopen and continue any time IMPORT AND EXPORT - Import from Photos, Files and iCloud Drive, or share into GridFix from any other app - Export JPEG, HEIF, PNG or TIFF, at original resolution or a custom size - Everything runs on your device: no account, no network, your photos never leave your phone FREE AND SUBSCRIPTION Every correction tool is free: guide lines, lens distortion, fine-tune sliders, cropping and the live-corrected camera are all fully usable, with unlimited viewfinder time. The limits are only on output: 3 editor exports a day, 10 camera saves a day, both at up to 2048px on the long edge, JPEG, without capture info or location (the capture date and orientation are kept). Subscribing unlocks: - Unlimited exports and unlimited camera saves - Original-resolution export (up to 48MP; the free tier caps the long edge at 2048px) - RAW import (ProRAW, DNG); PNG, TIFF and HEIF export at maximum encoder quality - Full EXIF kept on exports and captures (lens, exposure, location) - Live-corrected video recording (high-bitrate HEVC) GridFix does one thing well: it makes crooked lines straight. No color grading, no filters, no object removal. Available in English, Traditional Chinese, Simplified Chinese, Japanese, Korean, German, French and Spanish. Privacy Policy: https://gridfixapp.com/policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FormosaAR4 screens
GridFix4 screens

Verdict

The call

The clearest difference is in-app purchases: FormosaAR at none against GridFix's 3. FormosaAR also leads on iOS requirement (15.0 vs 18.0). GridFix's advantage is update cadence (every 4 days vs monthly). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. GridFix sells 3 in-app purchases, starting at $2.99 per month. FormosaAR asks for nothing beyond the download.

UpkeepUpdate frequency

FormosaAR ships an update monthly, GridFix every 4 days. The most recent releases landed on September 13, 2026 and September 8, 2026 respectively.

Scorecard3 real differences Β· 3 level
FormosaAR versus GridFix: the parameters behind the verdict, then further details
ParameterFormosaARGridFix
PriceFreeFree
Update frequencyMonthlyEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better18.0
Further details β€” not scored
Size488 MB5 MB
Age rating4+4+
Developerε‰ηΎŠζ•Έδ½ι›»ε½±ζœ‰ι™ε…¬εΈPEI-CHUN CHAO

In-app purchases

None

FormosaAR

No in-app purchases

3 purchases

GridFix

Subscriptions2
  • GridFix θ¨‚ι–±οΌˆζœˆηΉ³οΌ‰$2.991 Month
  • GridFix θ¨‚ι–±οΌˆεΉ΄ηΉ³οΌ‰$14.991 Year
One-time1
  • GridFix η΅‚θΊ«θ²·ζ–·$39.99

Questions

Is FormosaAR free?
FormosaAR is free to download, with no in-app purchases.
Is GridFix free?
GridFix is free to download, with in-app purchases available.
Do FormosaAR or GridFix have ads?
Neither FormosaAR nor GridFix shows ads.
Which is updated more often, FormosaAR or GridFix?
FormosaAR ships an update monthly, and GridFix every 4 days. Most recently, FormosaAR was updated on September 13, 2026 and GridFix on September 8, 2026.

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