Ad system
flat-ads.com
Most of the 101,270 apps that declare flat-ads.com reach it through a reseller: 99% have a RESELLER line, 24% a DIRECT one (13,536 files, 10,473 of them through Liftoff Monetize's account). Of 32,956 lines checked against its sellers.json (340 sellers), 69% match, 1.6% name an unlisted account and 30% declare the wrong seller type.
- Apps declaring it
- 101,270
- Sellers in sellers.json
- 340
- Lines verified
- 69%
- Lines with errors
- 10,774
- Avg. supply path score
- 49.7 / 100
23,987 DIRECT · 100,260 RESELLER
1.5% confidential
23,664 of 34,461 checked lines
34,461 lines in total
105,536 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 12 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 flat-ads.com 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.
flat-ads.com, YOUR_ACCOUNT_ID, DIRECT
flat-ads.com, YOUR_ACCOUNT_ID, RESELLER- Field 1:
flat-ads.com, the domain flat-ads.com uses in app-ads.txt. - Field 2: your account ID with flat-ads.com. It must equal the
seller_idin flat-ads.com'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): a certification authority ID. Most lines naming flat-ads.com carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 340
- Confidential
- 5 (1.5%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 12, 2026
- PUBLISHER201
- INTERMEDIARY132
- BOTH7
Cross-check of lines naming flat-ads.com
- Verified 23,664
- Seller ID not found 532
- DIRECT but intermediary 1,178
- RESELLER but publisher 9,064
- Seller type BOTH 23
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming flat-ads.com is looked up in its sellers.json. What each status means
Common errors with flat-ads.com lines
-
RESELLER but publisher
9,064 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask flat-ads.com why the account is listed as PUBLISHER.
-
DIRECT but intermediary
1,178 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask flat-ads.com to list it as PUBLISHER.
-
Seller ID not found
532 lines
Ask flat-ads.com 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.
-
Seller type BOTH
23 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.
Intermediaries most declared as RESELLER
Accounts on flat-ads.com 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 |
|---|---|---|
| vungle.com | INTERMEDIARY | 10,473 |
| digitalturbine.com | INTERMEDIARY | 6,856 |
| bidmachine.com | INTERMEDIARY | 2,092 |
| smaato.com | INTERMEDIARY | 412 |
| screencore.io | INTERMEDIARY | 326 |
| bizzclick.com | INTERMEDIARY | 259 |
| mobupps.com | INTERMEDIARY | 91 |
| darkmattertv.com | BOTH | 17 |
Apps that declare flat-ads.com
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about flat-ads.com
Does flat-ads.com publish a sellers.json?
Yes. Its file at https://www.flat-ads.com/sellers.json listed 340 sellers when we last read it on 12 October 2026: 201 publishers, 132 intermediaries and 7 listed as both; 1.5% are confidential.
How many apps declare flat-ads.com in app-ads.txt?
101,270 apps in Stoqlab's data (delisted apps included) declare flat-ads.com: 23,987 with at least one DIRECT line and 100,260 with at least one RESELLER line, across 13,536 app-ads.txt files, as of 13 October 2026 (recounted daily).
Why do flat-ads.com lines fail verification?
Of 34,461 lines naming flat-ads.com, 10,774 contradict its sellers.json. The most common case is "RESELLER but publisher", on 9,064 lines. If the account is yours, declare it DIRECT. If a partner holds it, ask flat-ads.com 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 flat-ads.com. Something wrong? Tell us.