Comparison

OSTConf vs My Divejunk

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

Head to head
About

OSTConf

Configure your dive computer settings and parameters wirelessly. Update date, time, custom text, gas mixes, and deco settings. Compatible with recent Bluetooth-enabled dive computers.

Highlights
  • Read and modify settings
  • Update date and time
  • Set custom text
  • Configure gas mixes
  • Set deco parameters
  • Upgrade firmware
  • Retrieve device information
Features
Read full description

OSTConf is an application for configuring your OSTC dive computer. It allows you to read and modify settings and parameters of dive computers manufactured by heinrichs weikamp GmbH. Using Bluetooth LE technology, you can retrieve device information, update date and time, custom text, set up your gas mixes and deco parameters as well as upgrading the firmware. OSTConf is compatible with recent Bluetooth-capable OSTC dive computers such as OSTC 2, OSTC plus, OSTC sport, OSTC TR, and OSTC 4. Note that due to the iOS hardware only OSTC devices with BLE are supported. OSTC4: The firmware file contains up to three parts. Please start the firmware update multiple times to ensure that all parts are updated.

About

My Divejunk

Features
Read full description

Met My Divejunk heb je alles wat je als duiker nodig hebt op één plek. Beheer je vullingen, tokens en documenten — direct vanaf je telefoon. Automatisch vullen Scan de QR-code op het vulpunt, kies het aantal tokens en start je vulling. Geen wachtrij, geen openingstijden. Vul je flessen wanneer het jou uitkomt. Tokens kopen Koop eenvoudig tokenpakketten via iDEAL. Je saldo wordt direct bijgewerkt en is klaar voor gebruik. Altijd je pasje bij de hand Laat je persoonlijke QR-code scannen in de winkel. Geen pasje nodig, je telefoon is genoeg. Documenten & brevetten Bewaar je duikbrevetten, medische verklaring en verzekeringsinformatie op één plek. De winkel kan direct zien dat alles in orde is. Meerdere duikwinkels Klant bij meerdere aangesloten winkels? Wissel eenvoudig van winkel in de app en bekijk je saldo per locatie. Overzicht & geschiedenis Bekijk je vulgeschiedenis, aankopen en activiteiten. Alles netjes bijgehouden.

Screenshots

OSTConf4 screens
My Divejunk3 screens

Verdict

The call

The clearest difference is update cadence: My Divejunk at every 5 days against OSTConf's every 5 months. My Divejunk also leads on iOS requirement (13.0 vs 16.0). 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

OSTConf ships an update every 5 months, My Divejunk every 5 days. The most recent releases landed on October 6, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 6 level
OSTConf versus My Divejunk: the parameters behind the verdict, then further details
ParameterOSTConfMy Divejunk
PriceFreeFree
Positive reviews25.0% of reviews—
Update frequencyEvery 5 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size3 MB44 MB
Age rating4+4+
DeveloperKai-Uwe SattlerRogier Visser

In-app purchases

None

OSTConf

No in-app purchases

None

My Divejunk

No in-app purchases

Questions

Is OSTConf free?
OSTConf is free to download, with no in-app purchases.
Is My Divejunk free?
My Divejunk is free to download, with no in-app purchases.
Do OSTConf or My Divejunk have ads?
Neither OSTConf nor My Divejunk shows ads.
Which is updated more often, OSTConf or My Divejunk?
OSTConf ships an update every 5 months, and My Divejunk every 5 days. Most recently, OSTConf was updated on October 6, 2026 and My Divejunk on October 26, 2026.

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