Over a week in, 5,000 installs and not a single rating: where the volume for the boxing voice trainer STRIKR came from

STRIKR is a one-person Australian company's bag training app: you hit the bag, and it calls out the combos to throw through voice during rounds. In early November it logged over a week of 5,019 installs on Google Play, which looks like it's gaining traction. Break it down and the volume is concentrated in Indonesia and the Philippines, with 13k installs and not one review; the product itself is about the same as a dozen similar ones. It's better studied as a case: how far a low-cost niche tool can get on creator videos plus one Southeast Asia push, and where it gets stuck.

A person blocked after the first round

On Oct 27, an Australian user gave STRIKR one star on the App Store: "Did the first round, found the intensity too low, wanted to restart a round, and was immediately forced into a 3-day trial with no other way out. If you let me try it first before signing up, that would've been better."

It's not an isolated case. A UK user in July was more specific: "After my first round it asked me to subscribe, and the page had no close button. I closed the app and reopened it, and it went back to the subscription page." But he also admitted: "I actually liked that round; it calls a combo every 5 seconds." The four most recent US-store reviews are all one-star, and three say the same thing: "The whole app is not free at all. It's not a premium tier; you can't use it without paying" (App Store US, UK, and AU reviews, 6–October).

Liking the round but not wanting to pay for the second one is pretty much STRIKR's situation right now.

What it is

The first line of the store page: "Most people hit the bag without a plan, the same three combos over and over at the same tempo, with no pressure." STRIKR's approach: choose the style (boxing, Muay Thai, kickboxing), round length (1 to 10 minutes), rest time and intensity, and the app calls combos at random during rounds; you hear it and hit.

The point it emphasizes most is the "personal combo library": store the combos you learned in class, name and toggle them, and what you saved in week one and week ten gets drawn randomly together, "forcing you to recall them when you're tired, which is when you really remember them" (App Store description, 11-06). There's also a 11-step questionnaire that generates a training plan.

Pricing is $6.99 a month or $29.99 a year, with a 3-day trial, and the developer is STRIKR Pty Ltd, which has only this one app. The iOS version launched in 2026 Apr 28, and the Android version didn't come out until Sep 5.

What's behind those 5,000 installs

Google Play, 10-29 to 11-05.

Three details together:

• The rise started suddenly. A third-party site's snapshot from mid-October still showed Android downloads at "1.3K+"; it was first spotted in Indonesia on Oct 17. That means most of the 13k installs came in the last three weeks.
• It's only charted in two countries, and it switched once. From 10-29 to 11-01 it ranked #169–194 on the Indonesia Health & Fitness Top Free chart; 11-01 it dropped off the Indonesia chart and from 11-03 it showed up at #174–185 on the same chart in the Philippines (Google Play, 10-29 to 11-06).
• 13K installs, 0 ratings. Organic users leave ratings now and then, so having none at all is rare.

Inference: this looks like an ad test in low-cost Southeast Asian markets, with the target shifting from Indonesia to the Philippines. Boxing is a big part of Filipino culture (the country of Pacquiao), and installs are cheap there, which makes it a good place to test conversion. But this is only a guess: I found no creatives for it in the ad libraries.

On iOS it's a much slower line: after more than six months live, it has 63 ratings at 4.4 stars in the US store, 22 in Australia and 21 in the UK (App Store, 11-06). It briefly hit the Top Grossing charts in Guatemala (#26), Egypt (#34) and the Philippines (#116), but those charts have low bars, and a handful of subscriptions can get you on them. All that really shows is that some people tried it and paid. Revenue isn't public. A third-party estimator left the revenue field blank for it in its category list, while the same page showed Heavy Bag Pro and BRAWLER at roughly $5K/month.

Where users come from: people hitting bags on Instagram

The channel they've kept running is Instagram. @strikr.app has 5,531 followers, and since 2026 May it has mostly reposted Reels of fighting creators using STRIKR on the bag: a person hitting a bag while the app calls "1-2 jab" in their ear and they throw it. One example is a Hungarian fighter, @zsombi.nemeth.official (49K followers), from Jun 3. These videos don't need to explain the product. You get it in one watch.

The rest is small: the TikTok account has 38 followers and 22 videos, with single videos getting 300 to 5,700 views, and the top one is also a collab with that Hungarian fighter (TikTok, 11-06). Nothing turns up on X, Reddit or in the press. The name also collides badly: a UK boxing event brand with $50M in funding is also called STRIKR, a German team training app is called strikr, and there's a football app with the same name on TikTok. People searching the brand get pulled elsewhere.

Who it's competing with

"Voice-called combos + round timer" is one of the oldest formats in combat fitness apps. A competitor comparison page updated in Nov 4 lists 9 of them, and STRIKR isn't among them yet.

Data from Google Play and the App Store, 10-29 to 11-06.

STRIKR's pitch of "your own combo library + random recall" was already done by Callout 2019 years ago. Mixing three striking styles also exists in Boxa and FightFlow. In this table it sits in the lower-middle. This category isn't short on products. It's short on distribution.

What users still complain about

Going through the reviews, the complaints cluster:

• Hard paywall: you get one round, then you can't use it without paying, and there's no close button (US, UK and Australian stores, 6–October, most of the negative reviews). One US user put it bluntly: "I could build this myself. Give us a version with 20 free minutes a day."
• Small UX bugs: "The voice swallows the first punch in a combo" (US store, 8-23); "Text is too small to read while doing combos, please let me enlarge it" (UK store, 10-12).
• Not enough moves: "Please add turning back kicks, spinning kicks" (UK store, 6-22, five stars).
• Billing complaint: an Australian user said they cancelled during the trial and were still charged the $42 annual fee (9-27).

The good reviews point the other way: "Really helped my combos and reaction speed, good for beginners" (Australian store, 10-25); "When I'm not at the gym, hitting the bag alone, this is what I rely on" (UK store, 6-22). Users accept the format, not the way it's paid for.

How well known it is

Very little. Revenue isn't public, no press coverage, no discussion on X or Reddit, and even comparison pages that list competitors don't include it. Someone made a web version with the same name on GitHub in Oct 29, with zero stars. Normally that would be a good thing, but here nobody knowing about it means it hasn't achieved anything worth knowing about yet.

If it were you

The verdict: don't copy STRIKR to build a second boxing voice trainer. That slot already has a dozen-plus players, and STRIKR itself hasn't broken out. What you can take from it is a format and two lessons: an audio-only vertical sports trainer is cheap to build, and creator-shot video suits it naturally. But a hard paywall and paid acquisition without ratings can't carry a product.

Who it suits: a small team, even one person, who practices a sport themselves, can reach mid-tier creators in that niche, and can build lightweight apps like TTS, a timer and a combo library.

Who it doesn't suit: anyone trying to go head-to-head in the English boxing market (Shadow Boxing and Heavy Bag Pro have thousands to tens of thousands of ratings, and newer entries like BoxMaxxing and BRAWLER are growing faster than it is); anyone hoping to win on the "random combo calls" feature alone (Callout had it seven years ago).

How to build it: two routes. One is to switch sports: take the same "ears hear the cue, body follows" idea into sports nobody takes seriously yet: taekwondo, solo Brazilian jiu-jitsu drills, fencing footwork, tennis shadow swings, badminton footwork, jump rope patterns. The other is to do better what it does badly inside combat sports: human coach recordings instead of machine voices, calls timed to music (FightNome is testing this), enlargeable text, a fuller move library (spinning kicks, elbows, knees), and a free tier people can actually start with, such as a few free rounds a day. Reviewers have said outright they'd use it that way. You could keep its $29.99/year price point, since people do pay for subscriptions on iOS.

How to get users: find athletes and coaches with 10K to 100K followers on Instagram and TikTok, and post hands-on videos of "hitting a bag / wall while the app calls the combos in your ear." That's the only channel that has shown it works. Put the search terms locals actually use ("boxing training", "muay thai", "heavy bag") at the front of the store name and the brand at the back, and avoid a brand word that collides with someone else's. If you want to test conversion, start with small spends in countries with strong fighting culture and cheap installs, like the Philippines, Thailand or Indonesia, but get your rating prompt right at the same time, so that ten thousand installs don't leave you with no ratings.

When to move before the peak: there's no hard deadline. Health & fitness apps peak in January (New Year's resolutions, my inference), so having the app live, the store page ready and creator videos prepared by mid-December would let you ride that wave.

What would prove me wrong: ① After the Philippines wave, if STRIKR's Android rating climbs to several hundred reviews within three months, or it charts in the top 100 of the US or Australia Health & Fitness Top Grossing, then that wave wasn't just testing. Following into boxing still has room, and this call was too pessimistic. ② If you launch the same app for another sport and, within two or three months of finding creators and spending a little on ads, it still can't keep paying users, then voice-coached workouts are too narrow a need on their own. The problem isn't that the fighting niche is crowded. ③ If STRIKR adds a free tier plus paid upgrades and its rating clearly improves, then a hard paywall was what was holding it back, and the "ship a version with a free tier" route has already been taken by it.

Data and sources

• Google Play: install counts and charts (Indonesia and Philippines Health & Fitness Top Free), 2026-10-29 to 11-06.
• App Store: launch date, ratings by store, store description, and US, UK and Australian user reviews (2026-06 to October), as of 11-06; small-country Top Grossing ranks come from App Store charts, from 10-28.
• The Android "1.3K+" snapshot in mid-October is from the third-party site apppage.net; the first date it was seen charting in Indonesia comes from AppInsider; the revenue field comes from AppStoreTracker. None of it is verified.
• The Southeast Asia ad spend is an inference. I found no creatives in the ad libraries.
• Public pages for Instagram @strikr.app and TikTok @strikr.app (11-06); competitor comparison page fightnome.app/compare (updated 11-04).