JEGS Perfect Start vs SGMP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JEGS Perfect Start
This app is a reaction time game designed to improve your speed and competitiveness. Test your reflexes by trying to achieve a perfect start or challenge friends to beat your best times. It offers different modes and adjustable settings to simulate various scenarios.
- Reaction time game
- Sportsman practice tree
- Pro practice tree settings
- Adjustable reaction time delay
- Challenge friends
- Practice perfect starts
Read full descriptionHide full description
There was a time when going head to head meant you had to draw quick to stay alive. Now you have to react quick to stay competitive. JEGS Perfect Start is a reaction time game that keeps you at your fastest. See if you can beat your best time or challenge a friend to beat your time. Try Pro or Sportsman mode, set your Reaction Time Delay and see how fast you really are; go for a Perfect Start (.000)! Whether you are a racer looking for a competitive edge or a fan looking to catch a glimpse grab this App... Ready, set, go! Features: * Sportsman/Full practice Tree (.500) * Pro practice tree settings (.400) * Adjustable Reaction Time Delay to simulate vehicle Try Pro or Sportsman mode, set your Reaction Time Delay and see how fast you really are; go for a Perfect Start (.000)! Practice your Perfect Start. Hold the JEGS button down until the tree begins to cycle. Release the button to clock your time. Adjust your Roll Out/Reaction Time Delay - Press options and dial in your desired time (0.000 - 1.500).
SGMP
Access real-time drag racing time slips and detailed race data directly on your phone. Enhance your track experience with weather information and automatic density altitude calculations to help tune your engine and strategize for bracket races.
- Real-time time slip data
- Detailed race information
- Weather station data
- Automatic density altitude calculation
- Engine tuning assistance
- Dial-in calculation for bracket racing
Read full descriptionHide full description
Drag racing Time slips from the South Georgia Motorsports Park race track are currently printed using a receipt printer at the race track. This app shows the same time slips information on your phone. The app also enhanced the racer and spectator's experience at the race track by reading more detailed information from each race track on the phone in realtime (within seconds after each race). The app shows the weather station information and calculate the Density Altitude automatically to help the racers to tune their engines before racing. A first in the industry. This app lets you review drag racing time slips from the South Georgia Motorsports Park race track at any time. The racers can also use the time slips of their car# and show their car's performance base on the Density Altitude to help calculate your next Dial In at your next bracket drag race with your car. This is another first in the industry. You can review our "Terms of Use" here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ You can review our "Privacy Policy" here: https://www.dynogeeks.com/privacy.html
Screenshots
Verdict
The clearest difference is review sentiment: JEGS Perfect Start at 51% against SGMP's 0%. JEGS Perfect Start also leads on in-app purchases (none vs 2) and ratings volume (34 vs 2). SGMP's advantage is price (Free vs $0.99) and rating (4.0 vs 2.8). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SGMP is free to download; JEGS Perfect Start costs $0.99 up front. SGMP sells 2 in-app purchases, starting at $4.99 per month. JEGS Perfect Start asks for nothing beyond the download.
SGMP holds the better App Store score, 4.0 against 2.8. That said, the two scores are not equally well evidenced: JEGS Perfect Start has 34 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 51% of JEGS Perfect Start's written reviews are positive against 0% of SGMP's, so the app with the better star average is not the one people write more warmly about.
JEGS Perfect Start ships an update every 22 months, SGMP every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | JEGS Perfect Start | SGMP |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 2.8 (34 ratings) | 4.0 (2 ratings) — better |
| Positive reviews | 51.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 34 — better | 2 |
| Update frequency | Every 22 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #19 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 22 MB | 17 MB |
| Age rating | 4+ | +4 |
| Developer | Horizons [Companies] | Stephan Monette |
Customer experience
JEGS Perfect Start
SGMP
Bugs and requests
JEGS Perfect Start
Reported bugs
32 issues- App doesn't work anymore
- Cannot get reaction time
- Stage to start time is always the same
- Tree drops too fast
- Lights are patterned, predictable
Show 27 moreShow fewer
- App is inaccurate, gives false times
- Tree activates too soon
- Functionality is poor
- Goes instant yellow
- Comes on too fast
- Ruined a perfectly good app
- Double bulb bs, needs pre-stage and stage bulbs
- Tree drops fast, always the same
- Upgrade is a major downgrade
- Pro tree doesn't work, no longer usable
- Terrible app now, messed up good thing
- No stage bulb, yellows are instant
- Latest update made tree timing wrong
- Inconsistent since new update
- App is a little slow
- Says same number all the time
- No option for delay box
- No variation in pro tree
- Lose the "jeeeegs" sound effect
- Not accurate
- Always goes red
- Always red light
- No instructions on how to use
- Green light does not work
- Rollout function is stupid
- Confusion on how to play
- Does not work, always red light
Requested features
9 requests- Add customization options
- Update the app
- Fix the tree timing
- Add delay box option
- Add variation to pro tree
Show 4 moreShow fewer
- Add sounds
- Add instructions
- Add rollout function improvement
- Add tutorial
SGMP
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JEGS Perfect Start
No in-app purchases
SGMP
- SGMP Sharing Premium$4.991 Month
- Annual Premium Access$8.991 Year
