Comparison

图片格式转换 vs Private ID Photo

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

Head to head
About

图片格式转换

Features
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图片格式转换是一款图片处理APP,本应用程序支持多种常见的图片处理操作,包括格式转换、压缩、缩放、裁剪和美化。 格式转换:可以将一种图像格式转换为另一种,支持的格式包括 JPEG、PNG、BMP、GIF 等。 图片压缩:如果您需要通过电子邮件或其他方式共享较大的图像文件,那么压缩图像可能是必要的。该应用程序提供了多种图像压缩选项,您可以根据需要手动调整压缩比率或选择预设的压缩级别。 图片缩放:改变图像的大小而不影响其宽高比,在多种情况下非常有用。 您可以通过指定所需的宽度和高度或直接设置百分比来缩放图像。可以保留原始宽高比例,也可以按照自定义的宽高比例缩放。 图片裁剪:选择所需的部分并将其剪切下来以创建一个更小但具有更高质量的图像。 裁剪后,您可以将其保存成 JPEG、PNG 或任何其他支持的格式。 图片美化:本应用程序提供了一些图像优化工具来使您的图像更加美观。例如,您可以调整亮度和对比度,修改饱和度,应用滤镜和效果等。 本应用程序为用户提供了多种常见的图像处理选项,方便用户快速完成各种图片处理操作。 【订购说明】 1、订购服务:周卡会员(1周)、永久会员(永久) 2、订购价格:周卡会员为8元/周,永久会员为58元/永久 3、付款:用户确认购买并付款后计入iTunes账户 4、苹果iTunes账户会在到期前24小时内扣费,扣费成功后订阅周期顺延一个订阅周期 5、如需取消订阅,请打开苹果手机“设置”--进入“iTunes Store 与 App Store”--点击“Apple ID”,选择"查看Apple ID",进入"账户设置"页面,点击“订阅”,选择 图片格式转换 取消订阅。如在订阅期结束的至少24小时前关闭订阅,此订阅将会自动续订 6、用户协议:https://docs.qq.com/doc/DSEJLR0RXb3V1cVlo 7、隐私政策:https://docs.qq.com/doc/DSE9QeEhqbnFTanNI

About

Private ID Photo

Features
Read full description

Make passport, visa and ID photos with a private, on-device workflow. PHOTO EDITOR • Take a guided photo or import from Photos. • Prepare a crop automatically, then adjust composition, lighting, posture, face alignment, edges and background. • Choose white, blue, red, gray or a custom solid background when appropriate. • Export electronic photos in JPEG or PNG, with standard, HD, Ultra HD or original-resolution options. MIXED PHOTO PRINT SHEETS • Combine multiple recent projects or import several original photos without retouching. • Mix different photo sizes and choose copies for each item. • Use common paper sizes, including 5, 6, 7, 8 and 9 inches, or enter custom dimensions. • Preview actual-size placement with margins, gaps and cutting guides. Photos never overlap; larger paper may be needed. • Proportionally reduce imported photos using a slider or width in millimeters. SIZE REFERENCES Presets include the United States, Canada, Schengen Area, Italy, United Kingdom, Japan, South Korea, Australia and China. Custom dimensions and original size are also available. Review physical size, pixels, DPI and pre-export checks. Requirements vary by authority and may change. Presets and checks are references only, not a guarantee of acceptance. Verify current official rules before submitting; avoid edits prohibited by the receiving authority. PRIVATE BY DESIGN Photo import, analysis, editing, preview and export preparation happen locally. No account, analytics SDK or developer-operated photo upload service. Editing and preview are free. Export requires IDPhoto VIP: a monthly subscription or one-time lifetime purchase. Apple displays available prices before purchase. Manage subscriptions and restore purchases through Apple. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lyndon1994.github.io/rolli-site/idphoto-privacy.html

Screenshots

图片格式转换4 screens
Private ID Photo4 screens

Verdict

The call

The clearest difference is device support: 图片格式转换 at 3 against Private ID Photo's 1. 图片格式转换 also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 图片格式转换 sells 2 in-app purchases, starting at $0.99 per 7 days and Private ID Photo sells 2 in-app purchases, starting at $0.69 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
图片格式转换 versus Private ID Photo: the parameters behind the verdict, then further details
Parameter图片格式转换Private ID Photo
PriceFreeFree
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size19 MB2 MB
Age rating4+4+
Developer炎蔚 张毅 林

In-app purchases

2 purchases

图片格式转换

Subscriptions1
  • 周卡会员$0.997 Days
One-time1
  • 永久会员$7.99
2 purchases

Private ID Photo

Subscriptions1
  • IDPhoto VIP Monthly$0.691 Month
One-time1
  • IDPhoto VIP Lifetime$0.99

Questions

Is 图片格式转换 free?
图片格式转换 is free to download, with in-app purchases available.
Is Private ID Photo free?
Private ID Photo is free to download, with in-app purchases available.
Do 图片格式转换 or Private ID Photo have ads?
Neither 图片格式转换 nor Private ID Photo shows ads.
Which is updated more often, 图片格式转换 or Private ID Photo?
图片格式转换 ships an update every 2 days, and Private ID Photo every 2 days. Most recently, 图片格式转换 was updated on October 30, 2026 and Private ID Photo on October 31, 2026.

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