Comparison

Helys vs Boost

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

Head to head
About

Helys

Features
Read full description

I am Helys, your companion for maintaining optimal vitamin D levels and help you create a healthy and effective habit of safe sun exposure. I am here to empower you and help you harness the power of sunlight for your overall well-being. Main Features: — Vitamin D Tracking I use a scientific formula which considers your skin type, geographical location, time of day, weather conditions and UV index to provide personalized insights on safe sun exposure durations. — Personalized Sunscreen Reminders I will remind you to apply sunscreen based on your skin type and current UV index. — Progress Insights and Reports I want to take care of you and ensure you're meeting your recommended levels of vitamin D. — User-Friendly Interface I have an intuitive interface, which makes it simple and effortless to navigate and track your vitamin D levels. Disclaimer: I do not provide medical advice. Always consult with a healthcare professional for personalized guidance regarding your vitamin D levels and sun exposure habits.

About

Boost

Easily log your daily supplements and nutrition with gentle reminders and Apple Health sync. This app offers a clean, clutter-free interface for informed users who value privacy and simplicity in tracking their intake.

Highlights
  • Single-tap supplement check-off
  • Log missed intakes from past days
  • Apple Health sync
  • Gentle reminders
  • Planned daily intake overview
  • Clean, clutter-free design
Read full description

Boost is a lightweight supplement and nutrition tracker built for people who already know what they take, and just want a clean way to track it. No pushy recommendations, no marketplace, no complicated dashboards. Just simple logging, Apple Health sync, and smart reminders that help your routine stick. What you get: • Check off supplements with a single tap, from notifications, widgets, or Apple Watch. • Quickly log missed intakes from past days. • Apple Health sync for your intakes • Gentle reminders at your chosen times. • See your planned daily intake across all supplements and nutritions. • Clean design, zero clutter • Available in English, German, Spanish, French, and Italian Privacy, by design: • No selling of your data. • No third‑party ads or embedded supplement shop. • No fishy AI advices. • No pushy upsells or “personalized” recommendations. Who it’s for: • Informed users who want a reliable, lightweight tracker. • People who value privacy and simplicity over noise and “growth hacks.” Disclaimer: Boost does not provide medical advice. Always consult a qualified professional for personal guidance. Apples standard Terms of Use apply: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://justasimple.app/privacy

Screenshots

Helys4 screens
Boost4 screens

Verdict

The call

The clearest difference is in-app purchases: Helys at none against Boost's 4. Helys also leads on iOS requirement (16.0 vs 18.0). Boost's advantage is update cadence (every 2 weeks vs every 3 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. Boost sells 4 in-app purchases, starting at $0.99 per month. Helys asks for nothing beyond the download.

UpkeepUpdate frequency

Helys ships an update every 3 months, Boost every 2 weeks. The most recent releases landed on September 24, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 5 level
Helys versus Boost: the parameters behind the verdict, then further details
ParameterHelysBoost
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size3 MB5 MB
Age rating12+4+
DeveloperAntonio PalombaRene Fischer

In-app purchases

None

Helys

No in-app purchases

4 purchases

Boost

Subscriptions1
  • Monthly Support$0.991 Month
One-time3
  • 1 Cup of Coffee (Support)$1.99
  • 1 Sandwich (Support)$4.99
  • 1 Lunch (Support)$11.99

Questions

Is Helys free?
Helys is free to download, with no in-app purchases.
Is Boost free?
Boost is free to download, with in-app purchases available.
Do Helys or Boost have ads?
Neither Helys nor Boost shows ads.
Which is updated more often, Helys or Boost?
Helys ships an update every 3 months, and Boost every 2 weeks. Most recently, Helys was updated on September 24, 2026 and Boost on September 28, 2026.

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