Comparison

OIO vs Gapzilla

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

Head to head
About

OIO

Features
Read full description

OIO 是一个轻量的生活笔记工具。 随手记录生活、想法和片段,AI 会把你的真实记录整理成自然的目标语言,让笔记也成为属于你自己的语言学习素材。 记录生活,顺便学会表达。 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Gapzilla

Read full description

Gapzilla is a goal and event tracking tool. Create a goal and record two kinds of events: a slip that happened, or an urge you noticed in the moment. Gapzilla calculates the time between slips and shows the current, longest, and average gaps. An urge is stored as a raw event and does not reset the current gap. For a calendar day that has already ended, if an urge was recorded and no slip occurred that day, the Insights screen can include it in a retrospective summary based on that day's outcome. Key features: - Create and switch tracking goals - Record event type, date, and an optional note - Review history in a calendar and list - View current, longest, average, and historical gap trends - Review urge summaries calculated from completed calendar days - Sign in with Apple or a Gapzilla account and sync data - Sign out or permanently delete your account and related data in the app The iOS interface is Chinese-only.

Screenshots

OIO4 screens
Gapzilla4 screens

Verdict

The call

The clearest difference is in-app purchases: Gapzilla at none against OIO's 4. Gapzilla also leads on update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement 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. OIO sells 4 in-app purchases, starting at $5.99 per month. Gapzilla asks for nothing beyond the download.

UpkeepUpdate frequency

OIO ships an update every 4 days, Gapzilla daily. Both last shipped on October 31, 2026.

Scorecard2 real differences · 4 level
OIO versus Gapzilla: the parameters behind the verdict, then further details
ParameterOIOGapzilla
PriceFreeFree
Update frequencyEvery 4 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size41 MB4 MB
Age rating4+4+
DeveloperYongjia Yueyan Technology Co., Ltd深 蒋

In-app purchases

4 purchases

OIO

Subscriptions4
  • OIO PLUS订阅会员$5.991 Month
  • OIO 订阅会员$9.991 Month
  • OIO PLUS 年费会员$49.991 Year
Show 1 more
  • OIO PRO 年费会员$69.991 Year
None

Gapzilla

No in-app purchases

Questions

Is OIO free?
OIO is free to download, with in-app purchases available.
Is Gapzilla free?
Gapzilla is free to download, with no in-app purchases.
Do OIO or Gapzilla have ads?
Neither OIO nor Gapzilla shows ads.
Which is updated more often, OIO or Gapzilla?
OIO ships an update every 4 days, and Gapzilla daily. Most recently, OIO was updated on October 31, 2026 and Gapzilla on October 31, 2026.

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