Comparison

O vs Security Photo

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

Head to head
About

O

This app provides a comprehensive offline tool for selecting standard rubber seal sizes, including O-Rings, X-Rings, and Back-Up Rings. It offers dimension searches, housing calculations for various sealing applications, and supports multiple international standards in both metric and imperial units.

Highlights
  • Offline standard rubber seal size selection
  • Search for O-Ring, X-Ring, and Back-Up Ring sizes
  • O-Ring housing calculations for sealing applications
  • Supports multiple international standards (AS568, METRIC, JIS, etc.)
  • Metric and Imperial unit support
  • Substitutable O-Ring size suggestions
Features
Read full description

GMORS O-Ring Master is the completed tool for standard rubber seal sizes. When you use this APP, you don't need to have internet and catalog. Except O-Ring sizes, it also includes the search functions of X-Ring and Back-Up Ring. Otherwise, you can also use O-Ring Housing to choose suitable O-Ring in your application. Main functions are as follows: Dimension Search:O-Ring, X-Ring and Back-Up Ring. - MM and Inch are both available. - Full standard O-Ring series: AS568, BS 4518, GB/T 3452.1, JIS B2401 P, JIS B2401 G, JIS B2401 S, JIS B2401 V, SMS 1586 and METRIC. - Collocated Back-Up for AS-568 O-Ring. - Substitutable O-Ring sizes within tolerance are available. O-Ring Housing: Piston Sealing、Rod Sealing and Face Sealing. - MM and Inch are both available. - Support calculation for both Static and Dynamic sealing applications (Face sealing is with static calculation only). - Up to 7 O-Ring standards ( AS568, METRIC, JIS B2401 P/G/S/V, JASO F404, GB/T 3452.1, BS 4518 and SMS 1586) for most of size requirement of different groove design.

About

Security Photo

Features
Read full description

Privacy Album App: Protect your digital privacy space in all aspects In the digital age, mobile phones have become our core tool for storing precious memories, but the ensuing risks of privacy leaks are also worrying-whether the phone is accidentally flipped through by others or the fear of malicious snooping on sensitive content. The Privacy Photo Album App came into being and was specially created for users who value privacy. Through multiple encryption technologies and user-friendly design, it completely solves your worries. The following will introduce its core functions and advantages in detail to help you fully understand this privacy management tool. 1. Triple biometric lock: a security barrier for seamless switching The Privacy Album App provides flexible unlocking methods to adapt to security needs in different scenarios: Fingerprint and face recognition: Relying on the mobile phone's native security chip, it achieves second-level unlocking, which not only avoids the burden of password memory, but also prevents bystanders from spying on input traces. Custom password lock: Supports numbers, patterns or mixed passwords, and can set a "pseudo password"-enter a specific password and enter a fake space. The real content is completely hidden, effectively responding to mandatory display requirements in social scenarios. Dynamic verification mechanism: Continuous entry of wrong passwords will trigger an intrusion alarm, automatically capture photos of those trying to crack and record the time and place to retain evidence for accountability. 2. Fully compatible media management: lossless storage The application supports more than 40 mainstream formats to meet diverse storage needs: Picture types: Including JPG, PNG, BMP, TIFF, GIF, etc. It especially provides perfect support for dynamic GIFs. It can be viewed frame by frame or set as album covers. Video format: Covers MP4, AVI, MKV, RMVB and even professional-grade MOV, FLV, etc., and supports background encryption and decoding during playback to avoid cache leakage. Batch operation and intelligent classification: You can import system album content with one click, and generate classified albums by time, place or custom tags; you can choose from original image quality or compressed format when exporting for easy sharing.

Screenshots

O4 screens
Security Photo4 screens

Verdict

The call

The clearest difference is price: O at Free against Security Photo's $0.99. O also leads on in-app purchases (none vs 1) and ads (none vs shown). Security Photo's advantage is update cadence (every 3 months vs every 11 months) and device support (3 vs 1).

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

O is free to download; Security Photo costs $0.99 up front. Security Photo sells 1 one-off in-app purchase. O asks for nothing beyond the download.

UpkeepUpdate frequency

O ships an update every 11 months, Security Photo every 3 months. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

Scorecard6 real differences · 4 level
O versus Security Photo: the parameters behind the verdict, then further details
ParameterOSecurity Photo
PriceFree — better$0.99
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 11 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size47 MB21 MB
Age rating4+4+
DeveloperGE MAO RUBBER INDUSTRIAL CO., LTD.少泽 梁

In-app purchases

None

O

No in-app purchases

1 purchases

Security Photo

One-time1
  • Upgrade To Pro$1.99

Questions

Is O free?
O is free to download, with no in-app purchases.
Is Security Photo free?
Security Photo costs $0.99, and also offers in-app purchases.
Do O or Security Photo have ads?
Security Photo shows ads; O does not.
Which is updated more often, O or Security Photo?
O ships an update every 11 months, and Security Photo every 3 months. Most recently, O was updated on October 12, 2026 and Security Photo on September 30, 2026.

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