Comparison

O vs MobiFleet

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

MobiFleet

Features
Read full description

MobiFleet é um aplicativo de rastreamento e telemetria de uso geral, desenvolvido para monitorar dispositivos e compartilhar informações autorizadas com segurança. O aplicativo registra localização, trajetos, velocidade e dados dos sensores do aparelho. Também permite acompanhar bateria, conectividade e eventos de movimento. Conforme os recursos liberados para a conta, o MobiFleet oferece: • Rastreamento por GPS • Telemetria e sensores do dispositivo • Alertas de movimento e segurança • Mensagens e notificações • Botão SOS com a última localização disponível • Monitoramento de bateria e conectividade • Análise local de sinais de atenção, quando habilitada Os recursos são ativados de acordo com o perfil do usuário e as permissões concedidas. A análise pela câmera é realizada no próprio dispositivo e não representa diagnóstico médico. A disponibilidade das funcionalidades pode variar conforme o plano contratado, o aparelho utilizado e as permissões concedidas.

Screenshots

O4 screens
MobiFleet4 screens

Verdict

The call

The clearest difference is update cadence: MobiFleet at every 3 days against O's every 11 months. O's advantage is iOS requirement (16.0 vs 18.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

O ships an update every 11 months, MobiFleet every 3 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
O versus MobiFleet: the parameters behind the verdict, then further details
ParameterOMobiFleet
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 11 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better18.0
Further details — not scored
Size47 MB102 MB
Age rating4+4+
DeveloperGE MAO RUBBER INDUSTRIAL CO., LTD.vinicius favero

In-app purchases

None

O

No in-app purchases

None

MobiFleet

No in-app purchases

Questions

Is O free?
O is free to download, with no in-app purchases.
Is MobiFleet free?
MobiFleet is free to download, with no in-app purchases.
Do O or MobiFleet have ads?
Neither O nor MobiFleet shows ads.
Which is updated more often, O or MobiFleet?
O ships an update every 11 months, and MobiFleet every 3 days. Most recently, O was updated on October 24, 2026 and MobiFleet on October 31, 2026.

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