OnlyAuth vs iEXIF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnlyAuth
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OnlyAuth 是一款快速、安全且易于使用的双重身份验证器(2FA),用于保护您的在线账户安全。 通过 OnlyAuth,您可以生成基于时间的一次性验证码(TOTP),即使密码泄露,也能有效防止账户被非法访问。 主要功能: • 支持 TOTP 验证(符合 RFC 6238 标准) • 离线使用,无需网络连接 • 简洁直观的用户界面 • 支持二维码扫描和手动添加账户 • 支持多个平台和账户 • 数据本地存储,更加安全 OnlyAuth 非常重视用户隐私,我们不会收集、存储或共享任何个人数据。 帮助您保护各类平台账户安全。 安全掌控,从 OnlyAuth 开始。
iEXIF
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iExif lets you view and change the capture information stored inside your photos — the EXIF metadata. Everything happens on your device. Nothing is uploaded, and the app never connects to the internet. DEVICE AND LENS PRESETS Presets cover 96 Apple devices, from iPhone 4 to the latest models and from iPad 2 to the newest iPads, including every ultra wide, main, telephoto and front camera. Pick a device and a lens, and the make, model, lens model, aperture and focal length are filled in for you. The preset values come from the EXIF of real photos taken with those devices, including the exact lens model strings. The few lenses with no original sample available yet are clearly marked as estimated. WHAT YOU CAN CHANGE • Device: make, model, software version • Lens: lens make, lens model, aperture, focal length, 35mm equivalent • Exposure: shutter speed, ISO, exposure compensation, metering mode, flash, white balance • Date: date taken and time zone, down to the second • Location: tap the map, search for a place, use your current location, or type coordinates; altitude and direction too • Rights: artist, copyright, description LOSSLESS Only the metadata is rewritten. The image is never re-compressed, so quality stays exactly the same. JPEG, HEIC and PNG are supported. LIVE PHOTOS A Live Photo stays a Live Photo. The video is saved alongside it, and its date, location and device info are updated to match. BATCH EDITING Apply the same values to many photos at once, or shift all their dates together while keeping their original order. Swipe sideways across photos to select quickly — up to 100 at a time. MAP PICKER Choose where a photo was taken right on the map. In mainland China the difference between map coordinates and GPS coordinates is handled automatically, so the pin matches the real place. MORE • Touch and hold a photo for a larger preview; Live Photos play • Save your favorite settings as templates and apply them with one tap • Change only what the Photos app shows, without creating a new photo • Save as a new photo, or save and remove the original • Convert to the device's default format, and match its camera resolution, when you want to • English and Simplified Chinese PRIVACY No data collection, no network access, no account, no ads, no in-app purchases. Your photos never leave your device.
Screenshots
Verdict
OnlyAuth and iEXIF are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | OnlyAuth | iEXIF |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 秦毓 常 | JIACHENG CAO |
In-app purchases
OnlyAuth
No in-app purchases
iEXIF
No in-app purchases









