Android Live app-ads.txt · Found

Bubble Level - Level Tool

by Simple Design Ltd. · bubblelevel.level.leveltool.leveler

View on Google Play Open full supply tree

Most of the 3,887 lines in Bubble Level - Level Tool's app-ads.txt (simpledesign.ltd) are RESELLER lines: 3,743 against 144 DIRECT, across 494 ad systems. 2,384 of 3,609 lines checked against sellers.json match; 601 name a seller ID the network does not list, 280 declare the wrong seller type. The file last changed on 9 October 2026; the same file covers 25 apps of this developer.

Bubble Level - Level Tool shares its app-ads.txt (simpledesign.ltd) with Period Calendar Period Tracker (Google Play), whose page carries the full analysis of the file.

Rating: 4.81
Installs: 1M+
Category: Tools
Contains ads: Yes

app-ads.txt

Domain: simpledesign.ltd
Status: Found (200)
Lines: 3,887
DIRECT / RESELLER: 144 / 3,743
Parse errors: 200
Last fetched: Oct 11, 2026
Last changed: Oct 9, 2026

sellers.json cross-check

3,887 lines checked

Verified

2,384

Errors

881

Warnings

532

Seller ID not found 601
DIRECT but intermediary 24
RESELLER but publisher 256
Seller type BOTH 332
Confidential seller 12
No sellers.json 188
Unchecked 90

What each status means

Declared supply tree

144 direct accounts across 84 direct sellers · 2,435 resellers buying from them · 1,308 not matched

Explore the full tree →

Simple Design Ltd. Direct seller Resellers buying from it

Direct seller	Accounts	Resold by	Issues
bidmachine.io	1	301 resellers: sharethrough.com, smartadserver.com, pubmatic.com …	0
smaato.com	2	277 resellers: pubmatic.com, rubiconproject.com, improvedigital.com …	1
vungle.com	2	272 resellers: pubmatic.com, lijit.com, sharethrough.com …	1
inmobi.com	1	157 resellers: rubiconproject.com, pubmatic.com, lijit.com …	0
algorix.co	2	141 resellers: video.unrulymedia.com, sharethrough.com, pubmatic.com …	2
bigo.sg	2	100 resellers: pubmatic.com, video.unrulymedia.com, lijit.com …	1
start.io	2	70 resellers: pubmatic.com, media.net, triplelift.com …	1
ignitemediatech.com	2	68 resellers: pubmatic.com, lijit.com, openx.com …	0
yandex.com	1	53 resellers: pubmatic.com, freewheel.tv, media.net …	1
betweendigital.com	3	52 resellers: pubmatic.com, smartadserver.com, video.unrulymedia.com …	2
taurusx.com	1	47 resellers: pubmatic.com, appnexus.com, improvedigital.com …	1
unity.com	2	41 resellers: smartadserver.com, sharethrough.com, rubiconproject.com …	2
+ 72 more direct sellers in the full tree

1,308 resellers, intermediary not matched to a direct seller of this app (not cross-checked yet: 79; the ad system publishes no usable sellers.json: 156; account not found in the ad system's sellers.json: 573; sellers.json lists the account as a publisher, not an intermediary: 257; the intermediary's domain is not a direct seller of this app: 230; the seller is confidential in sellers.json: 8; the intermediary has no domain in sellers.json: 5).

Seller IDs the networks do not list

601 lines of this app-ads.txt name an account ID that the ad system's sellers.json does not contain; the first 15 in file order. Usually a stale line or a typo in the ID. How to fix it

Line	Ad system	Account ID	Relationship
6	triplelift.com	10344	DIRECT
9	smaato.com	1100047005	DIRECT
22	appnexus.com	1752	RESELLER
31	contextweb.com	562499	RESELLER
34	freewheel.tv	1157729	RESELLER
35	freewheel.tv	1446674	RESELLER
36	freewheel.tv	1157777	RESELLER
38	indexexchange.com	183920	RESELLER
39	indexexchange.com	184270	RESELLER
49	mobilefuse.com	2281	RESELLER
60	rubiconproject.com	23822	RESELLER
67	start.io	smt	RESELLER
73	webeyemob.com	70107	RESELLER
81	altitude-arena.com	FIRD0F0P6T2MLDMG7GCJFTBAI8	RESELLER
82	aps.amazon.com	453666	DIRECT

More apps from Simple Design Ltd.

New to these files? What is app-ads.txt · Network directory · Glossary

Last crawled Sun, Oct 11, 2026 3:46 PM. Data derived from the public store listing, the developer's app-ads.txt and the ad systems' sellers.json files.