Comparison

Ninja Fight Clock vs onlyAlarm

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

Head to head
About

Ninja Fight Clock

Features
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This is a digital and analog clock application to fight the oncoming ninjas. When a ninja attacks, touch the bottom half of the screen. You can fight back with a shuriken or a sword. You can choose the interval between attacks from 10, 15, 20, 30, and 60 minutes. Since they appear at regular intervals, you may want to use them as an alarm when you feel sleepy, such as when you are studying. Each ninja uses its own unique ninjutsu. If your attack hits them several times, you can defeat them. If you tap the scrolls that sometimes appear on the screen, you can use various ninjutsu to fight back. The ninja will leave in one minute. If you defeat them all before they are gone, you will get the scroll from the beginning in the next battle. You can choose from 20 famous Japanese castles for the castle picture. You can also turn off the ninja action and enjoy it as just a clock. ***** The time text and analog clock can be moved with your finger. The picture and analog clock can be zoomed in and out with two fingers. Touch the time text to switch to setting mode. You can change the date and time to various formats by touching it in the setting mode. You can also switch between 12-hour and 24-hour displays. The screen can be rotated horizontally and vertically. By pressing buttons such as "2X" and "3X," the font size can be adjusted in steps. 20 types of backgrounds can be selected. Time signal tone can be selected from 78 different tones.

About

onlyAlarm

Features
Read full description

Set alarms on any date, customize intervals, keep it simple—free forever.

Screenshots

Ninja Fight Clock3 screens
onlyAlarm4 screens

Verdict

The call

The clearest difference is in-app purchases: onlyAlarm at none against Ninja Fight Clock's 1. onlyAlarm also leads on ads (none vs shown). Ninja Fight Clock's advantage is update cadence (every 3 weeks vs every 4 months) and device support (3 vs 1). 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. Ninja Fight Clock sells 1 one-off in-app purchase. onlyAlarm asks for nothing beyond the download.

UpkeepUpdate frequency

Ninja Fight Clock ships an update every 3 weeks, onlyAlarm every 4 months. The most recent releases landed on October 27, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 1 level
Ninja Fight Clock versus onlyAlarm: the parameters behind the verdict, then further details
ParameterNinja Fight ClockonlyAlarm
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.6
Further details — not scored
Size25 MB1 MB
Age rating12+4+
DeveloperMihoko Araki景洙 李

In-app purchases

1 purchases

Ninja Fight Clock

One-time1
  • Ninja Fight Clock with no ads$2.99
None

onlyAlarm

No in-app purchases

Questions

Is Ninja Fight Clock free?
Ninja Fight Clock is free to download, with in-app purchases available.
Is onlyAlarm free?
onlyAlarm is free to download, with no in-app purchases.
Do Ninja Fight Clock or onlyAlarm have ads?
Ninja Fight Clock shows ads; onlyAlarm does not.
Which is updated more often, Ninja Fight Clock or onlyAlarm?
Ninja Fight Clock ships an update every 3 weeks, and onlyAlarm every 4 months. Most recently, Ninja Fight Clock was updated on October 27, 2026 and onlyAlarm on October 6, 2026.

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