Comparison

KeepSmilin' vs ZaiSpace

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

Head to head
About

KeepSmilin'

Read full description

When you smile, even briefly, your brain releases a powerful cocktail of feel-good chemicals. The "Many Smiles Collaboration," a comprehensive 2022 study published in Nature Human Behaviour, confirmed that adopting a smile—even a forced one—genuinely makes you feel happier. Those 5-second smiles trigger the release of: Dopamine: Your brain's reward chemical Serotonin: Your natural mood stabilizer Endorphins: Your body's pain-relieving compounds Together, these create an instant mood boost that can be measured in brain activity. Research has consistently linked smiling to lower heart rates and reduced blood pressure, especially during stressful situations.

About

ZaiSpace

Create a digital avatar to represent your ideal self and embark on shared adventures with others. These experiences generate unique stories that seamlessly transition into conversations, fostering deeper connections.

Highlights
  • Create and customize a digital avatar
  • Engage in shared virtual hangouts
  • Generate stories from hangouts
  • Seamless chat integration after hangouts
  • Build a collection of shared memories
Features
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> ZaiSpace is a social app built around shared experiences. > Create Your Zai Your Zai is your ideal self. A digital being you hatch, name, and shape into whoever you wish you could be. It lives in ZaiSpace, representing you in ways a profile photo never could. > Go on Hangouts Your Zai meets other Zais and they go on adventures together. Each hangout becomes a story. Sometimes funny, sometimes surprisingly heartfelt. You just pick a topic and see what unfolds. > From Stories to Real Conversations After each hangout, the story drops right into a chat between you and the other person. No need for an icebreaker. You already have the best one. > Memories That Grow With You Every hangout leaves a trace. Over time, your Zai builds a collection of shared moments and a quiet reminder of the people you've met along the way. > We're a small team at Stanford who believe friendships start with having shared experiences, not scrolling past each other. Come hang out with us. > Questions? zaisland2024@gmail.com

Screenshots

KeepSmilin'4 screens
ZaiSpace4 screens

Verdict

The call

The clearest difference is update cadence: ZaiSpace at weekly against KeepSmilin''s fortnightly. ZaiSpace also leads on iOS requirement (16.3 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KeepSmilin' ships an update fortnightly, ZaiSpace weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 7 level
KeepSmilin' versus ZaiSpace: the parameters behind the verdict, then further details
ParameterKeepSmilin'ZaiSpace
PriceFreeFree
Rating—5.0 (4 ratings) — better
Number of ratings—4 — better
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone
Requires iOS26.016.3 — better
Further details — not scored
Size10 MB153 MB
Age rating4+17+
DeveloperLars HornbeckZaisland Inc.

In-app purchases

None

KeepSmilin'

No in-app purchases

None

ZaiSpace

No in-app purchases

Questions

Is KeepSmilin' free?
KeepSmilin' is free to download, with no in-app purchases.
Is ZaiSpace free?
ZaiSpace is free to download, with no in-app purchases.
Do KeepSmilin' or ZaiSpace have ads?
Neither KeepSmilin' nor ZaiSpace shows ads.
Which is updated more often, KeepSmilin' or ZaiSpace?
KeepSmilin' ships an update fortnightly, and ZaiSpace weekly. Most recently, KeepSmilin' was updated on October 30, 2026 and ZaiSpace on November 5, 2026.

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