Limits and tiers - Zend Developers

Every app has a tier: private, public or growth. New apps start on private. Approved public apps move to public. Ask Zend for growth.

Tier limits

Limit	private	public	growth
Payment size	$5	$50	$100
Sent through your app per user per day	$20	$200	$500
Money links per day (whole app)	20	500	5,000
Money per link (all uses)	$5	$50	$100
People per link	5	50	100
Cards per user per day	20	50	100
Largest prize	$20	$100	$500

Zend-wide limits apply on top, for example a $100 cap per money link and per prize while the contracts are new.

Error	Limit
`APP_LIMIT_AMOUNT`	Payment or link size
`APP_LIMIT_DAILY`	Daily spend per user, or links per day
`APP_LIMIT_USES`	People per link
`CARD_LIMIT`	Cards per user per day

You can lower the card cap with limits.cardsPerUserPerDay in the manifest. Other limits can’t be changed from the manifest.

Network budget

Zend pays the network cost of your app’s money links, prizes, joins and random draws, up to a monthly budget per tier:

Tier	Monthly budget	About this many collected links
private	2 SUI	440
public	50 SUI	11,000
growth	500 SUI	110,000

Past the budget, new links, prizes, joins and draws fail with APP_GAS_BUDGET until the 1st of the month (UTC). Collecting, taking back, results and payouts always go through. Plain sends and pay cost nothing and aren’t counted. Track usage with:

zend apps info <slug>

  network:    0.4210 of 2 SUI this month (21%), resets 2026-12-01

Other limits

What	Limit
Apps per account	10 (`APP_LIMIT`)
Interaction `data`	4 KB
Participants per interaction	50
Draws per interaction	50
Live room messages	8 KB each, 20 a second per person
Bridge call timeout	10 minutes (`TIMEOUT`)