Comparison

X vs Tiny Doctor

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

Head to head
About

X

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X-ray Scattering Simulator is a mobile application tool for demonstrating radiation scattering virtually. The demonstrated data is based on real life measurements in a hospital environment. The application is based on Augmented Reality technology (AR) that allows the user to add virtual 3D elements to the real-world environment through the camera of the mobile device. The objects in this application are the patient, X-ray machine and a color map depicting the radiation scattering. The purpose of this application is to demonstrate how the radiation generated during the X-ray imaging scatters to the environment.

About

Tiny Doctor

This app uses pretend medical instruments to help parents gently encourage good habits in children, like hand-washing and brushing teeth. It turns nightly battles into fun, silly scenarios where kids feel in control of the 'fix'.

Highlights
  • Pretend medical instruments
  • Silly scenarios for habit reinforcement
  • Parent debrief script
  • Gentle mode for sensitive children
  • Multi-language support
  • One-time purchase
Features
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PARENT-CHILD PRETEND PLAY. Tiny Doctor is a doctor-kit style habit game a grown-up plays WITH their child: every "scan" and "report" is clearly-labeled make-believe animation. No camera is used, nothing measures anything, and no real health information is ever produced - it is not medical advice. The goal is education: real hygiene habits, taught through giggles. Tiny Doctor is a box of pretend medical instruments a grown-up runs, with a wink, to end the nightly battles: hand-washing, tooth-brushing, too much ice cream, too much screen time, shampoo refusal, sofa acrobatics, and tantrums. Point the "scanner" at your child and the instrument finds something wonderfully silly - a sleepy ice-cream worm in the tummy, sugar bugs napping on a tooth, germs holding a sports day on an unwashed hand. Every screen is clearly labeled a PRETEND SCANNER. The child presses the one green button, the machine hums, and everything comes back clean, every time. The lesson lands because the fix is theirs. SEVEN INSTRUMENTS - Stomach ultrasound: the ice-cream worm - Hand microscope: germs at 40x - Eye exam: the eye sprite and the blurry chart - Scalp microscope: shampoo-dodging germs - Bone CT: the bone sprite and gentle-play cracks - Teeth checkup: sugar bugs vs. the toothbrush - Brain CT: two fluffy bugs that squabble when tantrums strike, and hug goodbye after a sorry BUILT FOR PARENTS - A parent area (2-second hold) with a debrief script for landing the joke kindly - Gentle mode caps every instrument at "watch" for sensitive kids - Five languages: English, Chinese, Hindi, Spanish, French - One-time purchase unlocks all instruments. No ads. No accounts. PRIVACY No data collected. Nothing leaves the phone. There is no analytics SDK, no ad network, and no sign-in. Pressure goes on the habit, never on the kid. Remember to smile when you show it.

Screenshots

X3 screens
Tiny Doctor4 screens

Verdict

The call

The clearest difference is in-app purchases: X at none against Tiny Doctor's 1. X also leads on iOS requirement (12.0 vs 16.4). Tiny Doctor's advantage is update cadence (every 9 days vs every 4 months). On price, 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

Both are free to download. Tiny Doctor sells 1 one-off in-app purchase. X asks for nothing beyond the download.

UpkeepUpdate frequency

X ships an update every 4 months, Tiny Doctor every 9 days. The most recent releases landed on September 18, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 7 level
X versus Tiny Doctor: the parameters behind the verdict, then further details
ParameterXTiny Doctor
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.4
Further details — not scored
Size79 MB75 MB
Age rating4+4+
DeveloperUniversity of OuluSimbino LLC

In-app purchases

None

X

No in-app purchases

1 purchases

Tiny Doctor

One-time1
  • Unlock every instrument$1.99

Questions

Is X free?
X is free to download, with no in-app purchases.
Is Tiny Doctor free?
Tiny Doctor is free to download, with in-app purchases available.
Do X or Tiny Doctor have ads?
Neither X nor Tiny Doctor shows ads.
Which is updated more often, X or Tiny Doctor?
X ships an update every 4 months, and Tiny Doctor every 9 days. Most recently, X was updated on September 18, 2026 and Tiny Doctor on September 25, 2026.

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