Ad system
iion.io
Most of the 119,453 apps that declare iion.io reach it through a reseller: 99% have a RESELLER line, 22% a DIRECT one (16,461 files, 13,843 of them through BidMachine's account). Its sellers.json lists 320 sellers, and 93% of the 45,884 lines we checked against it match. 62% of the lines carry the certification ID 013a29748465dc57.
- Apps declaring it
- 119,453
- Sellers in sellers.json
- 320
- Lines verified
- 93%
- Lines with errors
- 2,064
- Avg. supply path score
- 51.9 / 100
26,527 DIRECT · 118,528 RESELLER
0% confidential
45,173 of 48,359 checked lines
48,359 lines in total
124,994 apps scored
App counts, the sellers.json breakdown and the directory ranking are as of , recomputed daily (the same numbers as the directory). Line counts are recounted every 10 minutes. sellers.json last read 13 October 2026. The supply path score sums up how short and clean the declared paths are, 0 to 100 (how it is computed).
How to add iion.io to app-ads.txt
One line per account, in the app-ads.txt at the root of the domain your App Store and Google Play listings name as the developer website.
iion.io, YOUR_ACCOUNT_ID, DIRECT, 013a29748465dc57
iion.io, YOUR_ACCOUNT_ID, RESELLER, 013a29748465dc57- Field 1:
iion.io, the domain iion.io uses in app-ads.txt. - Field 2: your account ID with iion.io. It must equal the
seller_idin iion.io's sellers.json. - Field 3: DIRECT if you hold the account, RESELLER if a partner holds it and sells your inventory. DIRECT vs RESELLER
- Field 4 (optional):
013a29748465dc57, the certification authority ID on 62% of the lines naming iion.io.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 320
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 13, 2026
- PUBLISHER268
- INTERMEDIARY32
- BOTH20
Cross-check of lines naming iion.io
- Verified 45,173
- Seller ID not found 280
- DIRECT but intermediary 312
- RESELLER but publisher 1,472
- Seller type BOTH 1,122
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming iion.io is looked up in its sellers.json. What each status means
Common errors with iion.io lines
-
RESELLER but publisher
1,472 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask iion.io why the account is listed as PUBLISHER.
-
Seller type BOTH
1,122 lines
The account is listed as BOTH, so sellers.json alone cannot tell a buyer which relationship applies. Nothing to fix on your side; buyers usually look at the seller's domain.
-
DIRECT but intermediary
312 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask iion.io to list it as PUBLISHER.
-
Seller ID not found
280 lines
Ask iion.io for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
Intermediaries most declared as RESELLER
Accounts on iion.io that its sellers.json lists as INTERMEDIARY or BOTH, by the number of app-ads.txt files declaring them. Confidential sellers are left out.
| Seller domain | Type | Files |
|---|---|---|
| bidmachine.io | INTERMEDIARY | 13,843 |
| digitalturbine.com | INTERMEDIARY | 6,540 |
| anzu.io | INTERMEDIARY | 5,390 |
| smaato.com | INTERMEDIARY | 5,227 |
| inmobi.com | INTERMEDIARY | 2,278 |
| pubnative.net | INTERMEDIARY | 1,988 |
| zmaticoo.com | INTERMEDIARY | 1,267 |
| aps.amazon.com | INTERMEDIARY | 1,231 |
Apps that declare iion.io
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| iOS | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| iOS | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about iion.io
Does iion.io publish a sellers.json?
Yes. Its file at https://pubs.iion.io/sellers.json listed 320 sellers when we last read it on 13 October 2026: 268 publishers, 32 intermediaries and 20 listed as both; 0% are confidential.
How many apps declare iion.io in app-ads.txt?
119,453 apps in Stoqlab's data (delisted apps included) declare iion.io: 26,527 with at least one DIRECT line and 118,528 with at least one RESELLER line, across 16,461 app-ads.txt files, as of 13 October 2026 (recounted daily).
What is the certification authority ID for iion.io?
62% of the app-ads.txt lines naming iion.io carry "013a29748465dc57" in the fourth field. The field is optional; the IAB Tech Lab ads.txt 1.1 specification says identifiers in sellers.json supersede it, so a missing or different value does not make a line invalid.
Why do iion.io lines fail verification?
Of 48,359 lines naming iion.io, 2,064 contradict its sellers.json. The most common case is "RESELLER but publisher", on 1,472 lines. If the account is yours, declare it DIRECT. If a partner holds it, ask iion.io why the account is listed as PUBLISHER.
Not sure whether your line should say DIRECT or RESELLER? DIRECT vs RESELLER in app-ads.txt
Sources: the public app-ads.txt files of tracked apps and the sellers.json of iion.io. Something wrong? Tell us.