Comparison

Monthli vs Heliochron

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

Head to head
About

Monthli

Track all your monthly subscriptions in one place. See total spending, monthly changes, and detailed statistics. Get payment reminders and easily back up your data.

Highlights
  • Track subscription services
  • Manage payment costs
  • View monthly spending totals
  • Analyze spending statistics
  • Set payment reminders
  • Export and import data
Features
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Track what you subscribe to, how much it costs, and when it bills. From Netflix to your gym, every recurring charge in one place. See what you're paying this month, and how much more than last month. โ€ข 155 services Not on the list? Add it yourself. โ€ข Monthly cost Move between months to see that month's total and how many you're on. โ€ข Statistics Total spent, monthly average, and your highest month. Tap a month to see what you paid for and how much. โ€ข Payment reminders A notification the day before and on the day, at 10:00 AM. Turn it on or off for each subscription. โ€ข Backup Export to a file and bring it back whenever you need.

About

Heliochron

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Follow the sun. Look at a familiar place differently. Heliochron is a pocket instrument for light, time, and place. Use the AR view to see the calculated sun path over your surroundings, then explore the day and year with two slim, tactile thumbwheels. Notice a courtyard on an architectural walk. Explore a roofline in another season. Look from a possible planter position, or find a reason to return to a favorite view. THE PLACE COMES FIRST On first launch, a short explanation shows why location and camera access are useful. Sun calculations happen on your iPhone, without uploading your location. Allow access to start exploring, or enter coordinates manually in Settings. Narrow azimuth and elevation rulers leave room for the world outside. TIME AT YOUR FINGERTIPS Use Sun to change the time of day and date with separate black-metal wheels. Compare seasonal paths or return to Now with a tap. With obstacle editing off, drag the sun or its path to explore another time; the wheels follow your movement. COMPARE THE YEAR Turn on Year paths in Sun to compare seven representative trajectories, pairing months with similar sun paths. Month labels start in a column on the right and can be dragged along their paths. The overlay starts off and remembers your choice. The paths approximate the 21st of the first named month. MARK WHAT STANDS IN THE WAY Optionally paint trees, buildings, or hills with your finger. Fine diagonal hatching shows your marks, and the sun path dims behind them. Open Obstacles to paint, erase, undo, adjust the brush, or save and restore a named place. KEEP THE VIEW Tap the camera button to save the current sun view, including the camera scene, path, and obstacle marks, to Photos. Photos access is requested only when saving. Saved places and drawings stay locally on your iPhone. No account is required. STAY CURIOUS. KNOW THE LIMITS. Heliochron shows calculated sun positions, not weather or shadows moving across buildings. Obstacle painting is manual, not automatic detection. Marks describe one viewpoint and need checking when you move or return. Alignment depends on location, compass heading, camera tracking, and conditions. Settings includes compass correction and tracking recovery. Avoid pointing the camera directly at the sun for prolonged periods: this may damage the camera. The in-app warning and camera pause are reminders, not physical protection. Pausing capture cannot block sunlight; turn the lens away. For architects and urban planners exploring off duty, garden and balcony growers, and anyone who enjoys looking closer. Not a certified survey, building-compliance, PV-design, or professional solar-assessment tool.

Screenshots

Monthli4 screens
Heliochron4 screens

Verdict

The call

The clearest difference is update cadence: Heliochron at weekly against Monthli's every 3 weeks. Heliochron also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Monthli ships an update every 3 weeks, Heliochron weekly. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

Scorecard2 real differences ยท 6 level
Monthli versus Heliochron: the parameters behind the verdict, then further details
ParameterMonthliHeliochron
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 3 weeksWeekly โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidโ€”
DevicesiPhoneiPhone
Requires iOS26.017.0 โ€” better
Further details โ€” not scored
Size10 MB28 MB
Age rating4+4+
DeveloperSHINWOO KIMViSSee AG

In-app purchases

None

Monthli

No in-app purchases

None

Heliochron

No in-app purchases

Questions

Is Monthli free?
Monthli is free to download, with no in-app purchases.
Is Heliochron free?
Heliochron is free to download, with no in-app purchases.
Do Monthli or Heliochron have ads?
Neither Monthli nor Heliochron shows ads.
Which is updated more often, Monthli or Heliochron?
Monthli ships an update every 3 weeks, and Heliochron weekly. Most recently, Monthli was updated on October 6, 2026 and Heliochron on October 13, 2026.

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