The bottom line
Cheap TikTok app installs come from strong creative, tested one variable at a time on small budgets, then scaled with many identical campaigns. This lets a small team reach a CAC under a dollar without wasting money.
Key takeaways
- Creative matters more than targeting. 2:27
- Most viewers drop off in the first two seconds, so the ad needs a good hook and a clear call to action at the end.
- Ads were made by paying a younger brother's friends $50 each per TikTok, working from briefs built on trends found in hashtags.
- Testing one variable at a time with small budgets finds the winning ad. 0:28
- Three ads ran at $30 a day each, with only one variable changed (for example the call to action). Within four or five days one ad pulled ahead, such as "download now" at 1.5% CTR and 25% CVR.
- Results become statistically significant in about a week. After that the loser is cut and a new variable is tested.
- Three numbers show whether an ad is good. 6:29
- CPM under $6, CTR above 1% and CVR above 25%.
- An ad with all three converts at less than a dollar per install.
- Scaling works by cloning campaigns, not by raising budgets. 4:11
- Changing a campaign's budget by more than 15% resets it. One $500 campaign performed badly, but five identical $100 campaigns stayed strong.
- Winning ads moved to the US, UK and Canada after working in Australia. They also moved to Facebook and Instagram Reels, where they performed about the same.
- Organic posts and creator partnerships feed the paid ads. 4:38
- Every creative is posted organically first, and videos that do well there are used as ads.
- A community engagement campaign at $20 a day grew the account by about 30,000 followers. It brings followers, not downloads.
If you can nail the creative then nailing you know things like location and interest and keywords and that sort of stuff will bring down your CAC a little bit.
Jake Carp
Chapter summaries
0:00 Test each variable, then combine the winners
A handful of separate small tests finds the best settings, and the winners combine into a strong campaign.
- Six or seven variables each get tested alone 0:17
- Location, age, interest, keywords, call to action, description and creative style.
- After about a month, the best of each were put together.
- The audience is 13 to 24 year olds, and the team posted organically before running ads.
- A single word in the description changed performance.
- Budgets then rose to a few hundred dollars per ad group, and performance skyrocketed.
1:24 Finding ideas for the creative
Good briefs come from a curated feed of trends, applying why a video works rather than copying it.
- Niche hashtag searches shape a feed that shows what works 2:03
- Searches mix generic and niche tags, such as fitness or gym workouts.
- The goal is to apply the principles of a great video to your own niche.
- Organic posts with thousands of views signal that a style resonates with followers.
- New ads are modeled on those, and a winning style is repeated every time.
2:50 Targeting and organic testing
Narrow targeting can cut costs, but on TikTok broad settings plus organic testing work best.
- Narrow targeting can cut cost sharply 3:29
- A sports app targeting NFL fans paid about $5 per install.
- Targeting fans of every single team cut it to about $1.50.
- On TikTok, going broad is effective 3:51
- Add as many interests and hashtags as possible.
- Targeting expansion lets the ad reach more areas if it expects to perform well.
- Organic posts are a testing ground 2:40
- Some videos go viral and bring downloads, while others flop.
- Organic TikTok is currently quite tough, so it guides which ads to send out.
5:14 Tracking and avoiding waste
A tracking tool is required, and a plan keeps early spend from being wasted.
- Targeting iOS 14 and up users on TikTok requires a mobile measurement partner. 6:01
- Jake's team uses AppsFlyer.
- Contracts are priced by download volume.
- Don't sign a contract until monthly downloads are known and steady.
- Otherwise you pay overage fees, which happened to his team.
- New advertisers should plan first and test everything over time. 6:51
- Random spending early on is the mistake to avoid.
- The community campaign promotes two videos that already did well organically.
- A trend-aware account that replies to comments also helps.
7:12 Trends, spark ads and creative upkeep
Trending music and creator videos run as spark ads give cheap reach, while new platform features need skepticism.
- Trending songs matter more than trending videos. 7:14
- A photo montage set to a viral song was among the best ads.
- Asking TikTok for a whitelist unlocks new features and audiences.
- TikTok's pop-up page shown during an ad was tested, and people hated it.
- New features are worth testing, but not worth adopting blindly.
- Spark ads turn a creator's own post into an ad. 7:45
- The creator gains followers and views, and the brand gains downloads.
- The creator sends a video code from their ad settings.
- A link in the bio needs 1,000 followers, so spark ads help early.
- Normal ads in Ads Manager give more flexibility later.
- Ads can't run with a watermark.
- Weak ads get fixed by comparing them to the best ones. 8:19
- A list tracks best performers and "struggler" ads with lower CTR or CVR.
- Each struggler is checked for what it lacks, tweaked and rerun.
- Community ads bring followers, not downloads, so run both kinds.
9:40 Brand search lift
TikTok ads also raise brand search, so part of the installs arrive through the App Store.
- About 30% of people who see an ad search the app's name instead of tapping it. 9:55
- Branded keyword search volume rose after the campaign.
- Turning ads off and on showed the same effect on keyword rankings.
- Many people misspelled the app name, so a cheap App Store campaign covered about a hundred misspellings.
In the growth library
Jake Carp, Mobile app growth marketer who ran TikTok ads for app clients. A practical beginner playbook for TikTok app ads: test one variable at a time, scale by duplicating campaigns, and lean on creative over targeting. Jake Carp used it to reach 300k downloads in 12 months, with installs costing under a dollar.
Lessons that draw on this:
- How to structure and scale Meta campaigns
- How to make ads that convert
- How to pay creators fairly and safely
- How to turn organic winners into paid ads
- How to run more experiments faster
- How to find and copy viral formats
- How to win in the App Store
- How to tell if paid acquisition is profitable
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