Nugget ads vs boost ads
Nugget ads
Up to 108 per day, with no stated cooldown. They pay nuggets immediately, but the reward per ad falls according to lifetime nuggets earned from ads.
Boost ads
Up to 24 per day. Each gives 30 minutes at 2× gem production, allowing 12 boosted hours.
The boost formula
If you boost for h hours, your whole-day factor is:
Daily factor = 1 + (boosted hours ÷ 24)
0 hours = 1× · 6 hours = 1.25× · 9 hours = 1.375× · 12 hours = 1.5×
0 hours = 1× · 6 hours = 1.25× · 9 hours = 1.375× · 12 hours = 1.5×
This is why “2× boost” does not mean double monthly earnings when the maximum bank covers only half a day.
Nugget ad reward tiers
| Lifetime nuggets paid by ads | Nuggets per ad |
|---|---|
| 0–43,750 | 8 |
| 43,751–131,250 | 7 |
| 131,251–218,750 | 6 |
| 218,751–306,250 | 5 |
| 306,251–393,750 | 4 |
| 393,751–481,250 | 3 |
| 481,251–568,750 | 2 |
| 568,751–656,250 | 1 |
| 656,251+ | 0 |
Important: spending nuggets does not reset or preserve the rate. The taper follows lifetime ad-earned nuggets, not your current balance. Bought and referral nuggets do not move this counter.
A practical ad routine
- Collect before your tanks reach 24 hours.
- Use boost ads in blocks that fit your schedule; do not waste a boost when the 12-hour bank is full.
- Use the early 8-nugget tier while it lasts, but do not treat 864 nuggets/day as a permanent rate.
- Set your actual daily ad count in our growth simulator instead of assuming the maximum.
Ad allowances and taper: official Prospectour economy page, reviewed 22 August 2026.