Comparison

Skill Trees Pro vs Cumulus

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

Head to head
About

Skill Trees Pro

Read full description

Skill trees help you see your goals in a way that makes every bit of progress feel rewarding. We make it easier to stick with your long-term goals and less likely that you’ll give up when it feels like you’re not getting anywhere After your free trial ends, this app requires an active, auto-renewing subscription to continue using all features. • Subscription options are yearly. • Payment will be charged to your iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period • Account will be charged for renewal within 24 hours of the end of the current period, and identify the cost of the renewal • The account will be charged for renewal within 24 hours before the end of the current period. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.skilltreesapp.com/privacyPolicy Support: https://www.skilltreesapp.com/support

About

Cumulus

Features
Read full description

Build your skills one block at a time with Cumulus. Cumulus is a simple, beautiful time tracker designed to help you build and measure progress on any skill. Whether you're learning guitar, studying a new language, coding, or practicing meditation—Cumulus helps you stay consistent and see your growth over time. Key Features: • Simple Time Tracking — Tap to start, tap to stop. Your sessions are automatically saved. • Organize Your Skills — Create categories and nest skills like building blocks. Track "Music" with sub-skills like "Guitar" and "Piano." • Visual Progress — See colorful charts showing how you spend your time across all your skills. • 100% Private — All data stays on your device. No accounts, no cloud, no tracking. • Clean Design — A focused, distraction-free interface that gets out of your way. Start stacking up your skills today with Cumulus.

Screenshots

Skill Trees Pro4 screens
Cumulus4 screens

Verdict

The call

The clearest difference is in-app purchases: Cumulus at none against Skill Trees Pro's 1. Cumulus also leads on update cadence (every 2 days vs every 21 months) and device support. Skill Trees Pro's advantage is iOS requirement (15.1 vs 18.5). On price 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. Skill Trees Pro sells 1 in-app purchase, starting at $19.99 per year. Cumulus asks for nothing beyond the download.

UpkeepUpdate frequency

Skill Trees Pro ships an update every 21 months, Cumulus every 2 days. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

Scorecard4 real differences · 2 level
Skill Trees Pro versus Cumulus: the parameters behind the verdict, then further details
ParameterSkill Trees ProCumulus
PriceFreeFree
Update frequencyEvery 21 monthsEvery 2 days — better
Ads—No
In-app purchasesYesNo — better
Devices—iPhone, iPad — better
Requires iOS15.1 — better18.5
Further details — not scored
Size51 MB11 MB
Age rating4+4+
DeveloperLucas PenniceADAM CLAYTON HOLWERDA

In-app purchases

1 purchases

Skill Trees Pro

Subscriptions1
  • Unlimited access7 Days trial$19.991 Year
None

Cumulus

No in-app purchases

Questions

Is Skill Trees Pro free?
Skill Trees Pro is free to download, with in-app purchases available.
Is Cumulus free?
Cumulus is free to download, with no in-app purchases.
Which is updated more often, Skill Trees Pro or Cumulus?
Skill Trees Pro ships an update every 21 months, and Cumulus every 2 days. Most recently, Skill Trees Pro was updated on September 15, 2026 and Cumulus on September 18, 2026.

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