Comparison

ALFC Lightstick vs 21DaysOfChange

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

Head to head

About

ALFC Lightstick

Features

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This is the ALFC official lightstick app to be used with the ALFC official lightstick. This app allows you to customize your lightstick's lighting. What's even better, the app provides synchronized lighting so that Sontos can put up a united front and show our love!

About

21DaysOfChange

Features

Read full description

With our clear guidance and a bit of fun, we'll help you transform your habits into something you can be proud of. Imagine growing a tree - starting small, nurturing it daily, and watching it flourish. In just 21 days, you'll cultivate a new habit with tips and strategies that will last a lifetime. Join us on this transformative journey and take control of your lifestyle, one habit at a time. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.21daysofchange.app/privacypolicy

Screenshots

ALFC Lightstick4 screens

21DaysOfChange4 screens

Verdict

The call

The clearest difference is in-app purchases: ALFC Lightstick at none against 21DaysOfChange's 4. ALFC Lightstick also leads on update cadence (weekly vs every 9 months) and iOS requirement (12.0 vs 16.4). 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. 21DaysOfChange sells 4 in-app purchases, starting at $5.99 per month. ALFC Lightstick asks for nothing beyond the download.

UpkeepUpdate frequency

ALFC Lightstick ships an update weekly, 21DaysOfChange every 9 months. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 3 level

ALFC Lightstick versus 21DaysOfChange: the parameters behind the verdict, then further details
Parameter	ALFC Lightstick	21DaysOfChange
Price	Free	Free
Update frequency	Weekly — better	Every 9 months
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPod	iPhone, iPad
Requires iOS	12.0 — better	16.4
Further details — not scored
Size	56 MB	59 MB
Age rating	4+	4+
Developer	AnsonLohonting International Fan Club Limited	Hong Son Vu

In-app purchases

None

ALFC Lightstick

No in-app purchases

4 purchases

21DaysOfChange

Subscriptions4

21DaysOfChange Monthly Premium$5.991 Month
21DaysOfChange Monthly Business$17.991 Month
21DaysOfChange Yearly Premium$71.991 Year

Show 1 more

21DaysOfChange Yearly Business$214.991 Year

Questions

Is ALFC Lightstick free?

ALFC Lightstick is free to download, with no in-app purchases.

Is 21DaysOfChange free?

21DaysOfChange is free to download, with in-app purchases available.

Do ALFC Lightstick or 21DaysOfChange have ads?

Neither ALFC Lightstick nor 21DaysOfChange shows ads.

Which is updated more often, ALFC Lightstick or 21DaysOfChange?

ALFC Lightstick ships an update weekly, and 21DaysOfChange every 9 months. Most recently, ALFC Lightstick was updated on September 30, 2026 and 21DaysOfChange on October 5, 2026.