Dr. Elsey's Cat Attract is the strongest all-around pick in this comparison for cats avoiding the litter box.
Herbal attractant actually works for litter-box-avoidant cats, with the same low-dust multi-cat clay performance as Ultra.
Flushable, lightweight, and eco-friendly corn litter with surprisingly strong clumping for a natural option.
If the cat is going on the rug, start with Cat Attract. If the cat is fine and you want to flush the waste, World's Best is the better everyday buy. The bag prices are close.
This comparison page is maintained by the ReviewCatLitter editorial team and grounded in the same scoring framework used across the published review catalog.
Choose between them on texture, clumping, dust and price. Then, if the room still tells you where the box is, Purrify is activated carbon you mix into whichever bag you chose. It is what we use in our own homes.
Read our Purrify guide to picking a litter for odor control.
Every figure below is a reading from our own test runs, not a rating. Where a run never took a reading it says so.
| Reading | Dr. Elsey's Cat Attract | World's Best Cat Litter | Gap |
|---|---|---|---|
| Dust weighed per pourDust caught on a filter and weighed while the bag goes into the box. Lower is better. | 0.04 mgbetter | 0.15 mg | 0.11 mg |
| Clumps that survived the drop testShare of clumps still whole after a three-foot drop. Higher is better. | 98%better | 76% | 22 points |
| Ammonia after one dayParts per million above the tray, 24 hours in. Lower is better. | not measured | 2 ppm | only one side measured |
| Bag priceWhat the tested bag cost. Bag sizes differ, so read it next to cost per pound. | $26.99 | $29.99 | $3.00 |
| Cost per poundBag price divided by what is in the bag. Lower is better. | $0.67better | $1.07 | $0.40 |
| Cost per dayWhat the box costs to keep running each day. Lower is better. | $0.56better | $0.58 | $0.02 |
| Cost across a yearThat daily cost carried over a full year of use. Lower is better. | $204better | $212 | $8 |
Neither run recorded granules outside the box and ammonia after three days, so those rows are left out rather than filled in from a similar bag. The full test data shows every reading we have.
Primary tradeoff: Dr. Elsey's Cat Attract's weakest area here is tracking.
Best dust control here at 0.04mg per pour.
Strongest odor control in this set with strong unscented control.
Clumping is a real edge: rock-solid.
Scroll sideways to see every litter. Scores are editorial judgments out of 10.
| Product | ||
|---|---|---|
| Overall Score | 9.5Excellent | 9.1Excellent |
| Pricing | ||
| Price | $26.99 | $29.99 |
| Weight | 40 lbs | 28 lbs |
| Cost / Day | $0.56 | $0.58 |
| Performance | ||
| Dust Control | 9.2 0.04mg per pour | 7.8 0.15mg per pour |
| Clumping | 9.8 Rock-solid | 9 Excellent for corn |
| Odor Control | 8.8 Strong unscented control | 8.2 Good with daily scooping |
| Tracking Outside the Box | 7.3 Moderate | 9 Minimal |
| Value for Cost | 8.6 $0.56/day · $26.99 | 7.2 $0.58/day · $29.99 |
| Features | ||
| Type | Clumping Clay | Corn Litter |
| Flushable | ||
| Scented | No | No |
| Our Verdict | ||
| Best For | Cats avoiding the litter box | Eco-conscious owners who want flushable litter |
| Read ReviewCheck Price | Read ReviewCheck Price | |
Dr. Elsey's Cat Attract makes the most sense for cats avoiding the litter box.
You want herbal attractant actually works for litter-box-avoidant cats, with the same low-dust multi-cat clay performance as ultra.
You need a formula that solves cats avoiding the litter box better.
World's Best Cat Litter makes the most sense for eco-conscious owners who want flushable litter.
You want eco-friendly and flushable litter with very good daily usability.
You're on a tight budget or want the absolute lowest dust numbers.
The nearest options to this matchup on score and on price.
Weighed 0.04mg per pour and runs at $0.55 a day.
Weighed 0.11mg per pour and runs at $0.63 a day.
Weighed 0.03mg per pour and runs at $0.43 a day.
Dr. Elsey's Cat Attract comes out ahead on the balance of dust, clumping, odor control, tracking and daily cost. World's Best Cat Litter is still the one to buy for eco-conscious owners who want flushable litter.
Dr. Elsey's Cat Attract runs at $0.56 a day against $0.58 for World's Best Cat Litter.
Dr. Elsey's Cat Attract scored higher: strong unscented control, against good with daily scooping for World's Best Cat Litter.
World's Best Cat Litter keeps more litter in the box: minimal, against moderate for Dr. Elsey's Cat Attract.
Buy Ultra unless your cat has stopped using the box, which is the one job Cat Attract does better.
Cat Attract is what you try when your cat is missing the box. Clump & Seal is what you buy when the bag price decides it.
Ultra is the cleaner and cheaper daily litter. World's Best is the one to pick if you want to flush the waste and stop hauling heavy bags.
Clump & Seal is the cheap perfumed clay. World's Best is the flushable corn litter with no added scent.
World's Best is the corn litter most people start with. Sustainably Yours is the one that clumps harder and keeps more litter inside the tray.
Corn against walnut. World's Best flushes and barely leaves the tray. Naturally Fresh held more clumps together in our drop test and costs less per day.