Comparison

OptoSense vs Sjælfuld Graviditet

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

Head to head
About

OptoSense

Features
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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.

About

Sjælfuld Graviditet

Features
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Sjælfuld Graviditet er til dig, der længes efter en graviditet med mere nærvær, ro og forbindelse – og mindre uro, stress og bekymringer. Her får du blandt andet adgang til et kærligt 6-ugers forløb fyldt med støtte, viden og øvelser, som styrker din intuition og hjælper dig med at mærke dig selv og dit barn. DIN INTUITIVE GRAVIDITETSREJSE - 6 uger til ro, nærvær og forbindelse: Hver uge åbnes et nyt tema med viden gennem videoer, øvelser, meditationer og refleksion. Du får støtte til at: – mærke og lytte til din intuition – forberede dig trygt til fødslen – skabe forbindelse til barnet i din mave – finde ro og tillid i krop og sind REFLEKSIONSJOURNAL: Forbindelse Er du med på Din Intuitive Graviditetsrejse, får du også adgang til den smukke refleksionsjournal “Forbindelse – en refleksionsjournal til din graviditet” med guidede refleksioner og plads til egne noter, tanker og følelser. SJÆLFULD SAMLING Et voksende bibliotek med guidede meditationer, videoer og holistisk viden – lige ved hånden. Her finder du bl.a. lydspor til fødslen, vejrtrækningsøvelser, ritualer og oxytocin-støttende praksis. LIVE Q/A OG FÆLLESSKAB Hver 14. dag er der live Q&A, hvor du kan stille spørgsmål og få støtte direkte fra jordemoder Mie Malene Nørgaard, som også står bag forløbet. Du bliver en del af et nænsomt og trygt fællesskab med andre gravide. HOLISTISK FØDSELSFORBEREDELSE MED SJÆL OG VIDENSKAB Appen bygger på både jordemoderfaglig viden og en dyb forståelse for krop, sind og nervesystem. Du lærer hvordan du forbereder dig indefra – med tillid, ro og kraft. Velkommen hjem i din graviditet. Din krop kender vejen. Du skal bare finde hjem til tilliden. Download appen og begynd din rejse i dag.  Readout full Terms of Service and our Privacy Policy:  https://passion.io/terms-of-service  https://passion.io/privacy-policy

Screenshots

OptoSense4 screens
Sjælfuld Graviditet4 screens

Verdict

The call

The clearest difference is price: Sjælfuld Graviditet at Free against OptoSense's $9.99. OptoSense's advantage is ads (none vs shown) and chart position (#200 vs unranked). On update cadence, 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

Sjælfuld Graviditet is free to download; OptoSense costs $9.99 up front. OptoSense sells 6 one-off in-app purchases and Sjælfuld Graviditet sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OptoSense ships an update every 5 days, Sjælfuld Graviditet every 6 days. Both last shipped on October 28, 2026.

Scorecard4 real differences · 3 level
OptoSense versus Sjælfuld Graviditet: the parameters behind the verdict, then further details
ParameterOptoSenseSjælfuld Graviditet
Price$9.99Free — better
Update frequencyEvery 5 days — betterEvery 6 days
AdsNo — betterYes
In-app purchasesYesYes
Best chart rank#200 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better26.0
Further details — not scored
Size173 MB91 MB
Age rating4+17+
DeveloperNeuroSenseSjælfuld v/Mie Malene Nørgaard

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
3 purchases

Sjælfuld Graviditet

Subscriptions2
  • Sjælfuld Samling$9.991 Month
  • Sjælfuld Forlængelse$17.991 Month
One-time1
  • Din Intuitive Graviditet$299.99

Questions

Is OptoSense free?
OptoSense costs $9.99, and also offers in-app purchases.
Is Sjælfuld Graviditet free?
Sjælfuld Graviditet is free to download, with in-app purchases available.
Do OptoSense or Sjælfuld Graviditet have ads?
Sjælfuld Graviditet shows ads; OptoSense does not.
Which is updated more often, OptoSense or Sjælfuld Graviditet?
OptoSense ships an update every 5 days, and Sjælfuld Graviditet every 6 days. Most recently, OptoSense was updated on October 28, 2026 and Sjælfuld Graviditet on October 28, 2026.

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