How credits are calculated
Credits depend on refresh interval, device, number of keywords, and number of locations. Use this formula to estimate usage before adding keywords: Required credits = Base credits × Device multiplier × Keywords × LocationsBase credits (refresh interval)
Each refresh interval has a fixed base credit cost per keyword-location-device per cycle. More frequent updates cost more credits.| Refresh interval | Base credits per cycle |
|---|---|
| Daily | 31 |
| Weekly | 4 |
| Monthly | 1 |
The base value represents how often SERP Lens checks rankings. Daily tracking uses 31 credits per keyword-location-device combination per month; weekly uses 4; monthly uses 1.
Device multiplier
The device setting multiplies the base credits:| Device | Multiplier |
|---|---|
| Desktop only | 1 |
| Mobile only | 1 |
| Both | 2 |
Keywords and locations
- Keywords: Each keyword you add is multiplied by the base credits and the device and location counts.
- Locations: Each location (e.g. United States, United Kingdom) multiplies the total. Adding more locations increases credits proportionally.
Example calculations
Use the formula to estimate credits before adding keywords:Single keyword, one location, desktop, daily
Base (31) × Device (1) × Keywords (1) × Locations (1) = 31 credits.
Single keyword, one location, both devices, daily
Base (31) × Device (2) × Keywords (1) × Locations (1) = 62 credits.
10 keywords, 2 locations, desktop, daily
Base (31) × Device (1) × Keywords (10) × Locations (2) = 620 credits.
How your balance is tracked
- Total limit: Your subscription plan and any add-ons define your ranking credit limit. You can see this in your account or billing area.
- Used credits: SERP Lens sums the credit cost of every keyword you track, using each keyword’s refresh interval, device, and locations). That total is your used ranking credits.
- Available credits: Available = Total limit − Used. You can add or change keywords only when the new total required does not exceed your available credits.
Your usage updates as you add or remove keywords. Removing keywords or lowering refresh frequency frees credits for new tracking.
Troubleshooting
I see 'Insufficient credits' when adding keywords
I see 'Insufficient credits' when adding keywords
Your current selection (keywords × locations × device × refresh interval) needs more credits than you have available. Try one or more of:
- Fewer keywords or locations
- Desktop or Mobile only instead of Both
- Weekly or Monthly instead of Daily If you need more capacity, check your plan and add-ons for additional ranking credits.
How do I know how many credits I have left?
How do I know how many credits I have left?
You can see your available ranking credits in the app when you add or edit keywords. Your plan and add-ons set your total limit; the app subtracts the cost of your current keywords to show what’s left.