---
title: "TheStack Speed Training System"
url: "https://ifrothgolf.com/product/the-stack-speed-system"
type: "product"
brand: "The Stack"
category: "Training Aids"
price_usd_approx: "300"
prices_checked: "2026-09-05"
publisher: "ifrothgolf"
---


# The Stack TheStack Speed Training System

> A genuinely smart, data-driven swing speed trainer that builds you a personalised programme instead of just telling you to swing harder.

- **Price:** $300 approx (US; live price at the retailer)
- **Best for:** committed golfers chasing measurable speed gains

**Where to buy:** [Check price at PlayBetter](https://www.playbetter.com/products/thestack-speed-trainer-award-winning-app?ghref=2301%3A1337342) (affiliate link) · also stocked by Golf Swing Systems, Amazon (US), Amazon (UK)

## Our take

TheStack is a swing speed training system built around a weighted training club and an app developed by a respected golf biomechanist. You attach combinations of five milled weights to the club, then follow app-prescribed sessions over a six to ten week block. The app baselines your current speed, builds a force-velocity profile, and prescribes which weights to swing and how fast, adjusting as you progress. It is overspeed and resistance training done with proper structure rather than guesswork.

**What's great:** The personalisation is the real draw. Instead of a generic stick you swing, the app tells you exactly what to do each session and tracks whether it is working, which keeps you honest and motivated. The hardware is genuinely well made, the 30 weight combinations cover everyone from juniors to big hitters, and the structured protocols mean many golfers see real, recorded speed gains over a training block. Including a year of app access in the price is fair.

**Worth knowing:** This is not a buy-it-and-leave-it gadget. It only works if you commit to several sessions a week for weeks, and progress can stall if you skip the programme. The bigger catch: it does not measure your speed on its own. You need a separate speed device or launch monitor that can read swings without ball impact, which is an extra cost many buyers do not expect. After year one, continued full app access becomes a subscription. And like all speed work, the gains taper and you have to keep training to hold them.

**Verdict:** If you are serious about adding clubhead speed and will follow the plan, this is one of the most credible, well-engineered speed trainers available, and the app structure is what sets it apart. Just budget for a compatible speed device and go in knowing it rewards consistency, not impulse.

## Key features

- 5 CNC-milled weights giving 30 combinations from 0g to 300g
- Engineered training club: 41.5in adult or 38.5in junior options
- Companion app (iOS, Android, Chrome web beta) builds personalised 6 to 10 week programmes
- Includes 1-year app membership plus Stack Putting and Stack Wedging access
- Weight case doubles as a phone stand for recording sessions
- Requires a separate speed-measuring device that reads swings without ball impact

## Specifications

| Spec | Value |
| --- | --- |
| Aid type | swing speed training system (weighted training club plus app) |
| Skill target | clubhead/swing speed via overspeed and resistance training |
| Features | 5 CNC-milled weights giving 30 combinations from 0g to 300g; requires a separate speed-measuring device that reads swings without ball impact; weight case doubles as a phone stand |
| Dimensions | 41.5in adult or 38.5in junior options |
| App support | companion app (iOS, Android, Chrome web beta) builds personalised 6 to 10 week programmes |
| Includes | 1-year app membership plus Stack Putting and Stack Wedging access |

_As published by the manufacturer. Absent rows mean the maker doesn't state it._

## Read more

- Ranked in: [Gear to Hit It Further](https://ifrothgolf.com/guides/speed-and-distance)
- Ranked in: [Best Swing Speed Trainers 2026](https://ifrothgolf.com/guides/best-swing-speed-trainers)

---

Source: [ifrothgolf](https://ifrothgolf.com) — independent golf-gear editorial.

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Affiliate disclosure: ifrothgolf may earn a commission on purchases made through the retailer links above, at no extra cost to the buyer. It never changes what we recommend. https://ifrothgolf.com/disclosure