Comparison

Sydhavsøernes Box vs OptoSense

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

Head to head
About

Sydhavsøernes Box

Features
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Alt, du behøver til din træning – samlet i én app. Vores træningsapp er udviklet til at støtte og forbedre din træningsrejse ved at samle alle de nødvendige funktioner ét sted. Du kan nemt booke og administrere dine hold, tilmelde dig kommende events og følge dine personlige træningsprogrammer, så du holder kursen mod dine mål. Appen giver dig også adgang til en butik, hvor du kan købe udstyr, kosttilskud og andre nødvendigheder. Du kan registrere dine træningsresultater over tid og følge din udvikling. Derudover kan du lære holdet bag centret at kende i afsnittet "Mød teamet". Alle funktioner er designet med fokus på en professionel og brugervenlig oplevelse – skræddersyet til vores medlemmers behov.

About

OptoSense

Features
Read full description

OptoSense is an app with optokinetic (OPK) stripes/images, designed to elicit optokinetic nystagmus (OKN). With the Interactive function the task becomes more cognitive demanding and therefore the drill will also become more beneficial. OptoSense is designed for handheld devices. OPK images size, direction and speed can be adjusted and utilized for eye training, such as smooth pursuits and saccades. To elicit the OKN response, simply place the device, displaying the desired images, in front of the eyes. Eye training is relevant through all phases of life and therefore OptoSense can be utilized at any given age. OptoSense is made child relevant, with a wide selection of different images and with “Next Level OPK” bundle (in-app purchase) it is also highly relevant for athletes at any age and levels. “Interactive” and “Random” can help to make the task more fun, but also more cognitive demanding and therefore the drill will also become more beneficial. When “Interactive” is activated, the images will temporarily dissolve when pressed on. The app user can choose any given image to dissolve, for example choose only the green balloons, or only the balloons with stars on When “Random” is activated, the OPK images will appear in random order, which can contribute to increase the level of difficulty and make the drill become even more beneficial. For inspiration to utilize “Interactive” and “Random”, go to www.optosense.app When the OptoSense is purchased, it includes; the “Basic“ bundle, “Interactive”, “Random” and “Direction lock”. The basic bundle includes 6 image scrolls: black and white stripes, black shapes, balloons, dinosaurs, mixed animals and space. Additional image bundles can be purchased “in-app”– each bundle includes 4 new image scrolls. “Next Level OPK” can be purchased “in-app”, it includes 7 images scrolls, each scroll contains 8 images. 2 image scrolls with different Stroop variations, 1 image scroll with black arrows in 8 “compass directions”, 1 image scroll with red/green arrows in 4 different directions, 1 image scroll with coordination tasks, 1 image scroll with red/green ”Go/NoGo”, and 1 image scroll with 8 different sports balls.

Screenshots

Sydhavsøernes Box4 screens
OptoSense4 screens

Verdict

The call

The clearest difference is price: Sydhavsøernes Box at Free against OptoSense's $9.99. Sydhavsøernes Box also leads on in-app purchases (none vs 6) and iOS requirement (15.5 vs 17.6). OptoSense's advantage is chart position (#200 vs unranked). On update cadence, ads 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

Sydhavsøernes Box is free to download; OptoSense costs $9.99 up front. OptoSense sells 6 one-off in-app purchases. Sydhavsøernes Box asks for nothing beyond the download.

UpkeepUpdate frequency

Sydhavsøernes Box ships an update weekly, OptoSense every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 3 level
Sydhavsøernes Box versus OptoSense: the parameters behind the verdict, then further details
ParameterSydhavsøernes BoxOptoSense
PriceFree — better$9.99
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Best chart rank—#200 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better17.6
Further details — not scored
Size67 MB173 MB
Age rating4+4+
DeveloperBooking Board ApSNeuroSense

In-app purchases

None

Sydhavsøernes Box

No in-app purchases

6 purchases

OptoSense

One-time6
  • Animals and nature$2.99
  • Vehicles and machines$2.99
  • Faces, dino, animals and toys$2.99
Show 3 more
  • Fantasy and mosters$2.99
  • Interactive feature for images$5.99
  • Next Level OPK$6.99

Questions

Is Sydhavsøernes Box free?
Sydhavsøernes Box is free to download, with no in-app purchases.
Is OptoSense free?
OptoSense costs $9.99, and also offers in-app purchases.
Do Sydhavsøernes Box or OptoSense have ads?
Neither Sydhavsøernes Box nor OptoSense shows ads.
Which is updated more often, Sydhavsøernes Box or OptoSense?
Sydhavsøernes Box ships an update weekly, and OptoSense every 5 days. Most recently, Sydhavsøernes Box was updated on October 24, 2026 and OptoSense on October 28, 2026.

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