Checkpoints and reward boxes

Checkpoints and reward boxes are DoppiNow's surprise rewards. Every 5 minutes of focus passes a checkpoint, and each one may hide a box that you open in the popup. Boxes come in four rarities, from common (20–40 XP) to legendary (400 XP plus a streak saver).

Last updated October 15, 2026

Key facts

Category: Rewards
Where to find it: Always on.
Availability: In the DoppiNow Chrome extension: a 7-day free trial, then $3.99/month or $29.99/year. Desktop Chrome 120 or newer (other Chromium browsers such as Edge or Brave may also work).
Status: Available now.

How it works

Every 5 minutes
Each 5 focused minutes passes a checkpoint: a buoy, a boost ring, a layer, a milestone pin or a chapter signpost.
A chance of a box
35% at x1, plus 5% per combo tier, up to 55% at x5.
Four rarities
Common 20–40 XP, rare 60–100, epic 150–220, legendary 400 XP plus a streak saver.
Open when you like
Boxes wait in the popup until you tap them. They never expire, and there’s nothing to buy.

All the details

Every 5 focused minutes in a session is a checkpoint: a buoy at sea, a boost ring in space, a layer in the art studio, a milestone for the startup, or a chapter signpost on campus.
Each checkpoint has a 35% chance of a box at x1, plus 5% for each combo tier: 40%, 45%, 50% and 55% at x5.
The very first checkpoint of your very first session always has a box, and the first box you ever open is always rare.
Rarities:
- common: 70% of boxes, 20–40 XP
- rare: 22%, 60–100 XP
- epic: 7%, 150–220 XP
- legendary: 1%, 400 XP plus a streak saver if you hold fewer than 2
Boxes wait unopened, with a count on the popup's top bar, until you tap them. Opening one plays the lid, rarity-colored rays and an XP count-up, with "Collect" and "Open another (N)".
Daily quests add a bonus box when you claim all three (see Daily quests).

Settings: Always on.

Why it helps with ADHD

Visible checkpoints draw on the goal-gradient effect (Kivetz et al. 2006) and on progress monitoring. In 138 studies, tracking progress improved goal attainment (d = 0.40) (Harkin et al. 2016). Our research review found no ADHD evidence for random reward boxes specifically, so we make no claims for the boxes themselves.

DoppiNow is a productivity tool, not a treatment for ADHD.

Sources

Kivetz, R., Urminsky, O., & Zheng, Y. (2006). The goal-gradient hypothesis resurrected: Purchase acceleration, illusionary goal progress, and customer retention. Journal of Marketing Research, 43(1), 39–58. doi.org/10.1509/jmkr.43.1.39
Harkin, B., Webb, T. L., Chang, B. P. I., Prestwich, A., Conner, M., Kellar, I., Benn, Y., & Sheeran, P. (2016). Does monitoring goal progress promote goal attainment? A meta-analysis of the experimental evidence. Psychological Bulletin, 142(2), 198–229. doi.org/10.1037/bul0000025